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Finding the Fourth Proportional to 525.03, 724.58 and 347.69

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Solution

The fourth proportional to 525.03, 724.58 and 347.69 is: 479.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    525.03 : 724.58 = 347.69 : x
  2. Step 2: Convert to fraction form
    525.03/724.58 = 347.69/x
  3. Step 3: Cross multiply
    525.03x = 724.58 × 347.69
  4. Step 4: Simplify right side
    525.03x = 251,928.28
  5. Step 5: Solve for x
    x = 251,928.28/525.03
  6. Step 6: Final answer
    x = 479.83

Related Problems

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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 (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.