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Finding the Fourth Proportional to 529.92, 731.04 and 333.72

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Solution

The fourth proportional to 529.92, 731.04 and 333.72 is: 460.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    529.92 : 731.04 = 333.72 : x
  2. Step 2: Convert to fraction form
    529.92/731.04 = 333.72/x
  3. Step 3: Cross multiply
    529.92x = 731.04 × 333.72
  4. Step 4: Simplify right side
    529.92x = 243,962.67
  5. Step 5: Solve for x
    x = 243,962.67/529.92
  6. Step 6: Final answer
    x = 460.38

Related Problems

Find fourth proportional to 264.96, 365.52 and 166.86
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Double scale
Find fourth proportional to 530.92, 732.42 and 334.72
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.