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Finding the Fourth Proportional to 508.98, 758.21 and 493.68

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Solution

The fourth proportional to 508.98, 758.21 and 493.68 is: 735.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    508.98 : 758.21 = 493.68 : x
  2. Step 2: Convert to fraction form
    508.98/758.21 = 493.68/x
  3. Step 3: Cross multiply
    508.98x = 758.21 × 493.68
  4. Step 4: Simplify right side
    508.98x = 374,313.11
  5. Step 5: Solve for x
    x = 374,313.11/508.98
  6. Step 6: Final answer
    x = 735.42

Related Problems

Find fourth proportional to 254.49, 379.11 and 246.84
Half scale
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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.