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Finding the Fourth Proportional to 595.42, 821.68 and 346.76

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Solution

The fourth proportional to 595.42, 821.68 and 346.76 is: 478.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    595.42 : 821.68 = 346.76 : x
  2. Step 2: Convert to fraction form
    595.42/821.68 = 346.76/x
  3. Step 3: Cross multiply
    595.42x = 821.68 × 346.76
  4. Step 4: Simplify right side
    595.42x = 284,925.76
  5. Step 5: Solve for x
    x = 284,925.76/595.42
  6. Step 6: Final answer
    x = 478.53

Related Problems

Find fourth proportional to 297.71, 410.84 and 173.38
Half scale
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Double scale
Find fourth proportional to 596.42, 823.06 and 347.76
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.