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Finding the Fourth Proportional to 530.16, 731.20 and 333.48

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Solution

The fourth proportional to 530.16, 731.20 and 333.48 is: 459.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    530.16 : 731.20 = 333.48 : x
  2. Step 2: Convert to fraction form
    530.16/731.20 = 333.48/x
  3. Step 3: Cross multiply
    530.16x = 731.20 × 333.48
  4. Step 4: Simplify right side
    530.16x = 243,840.58
  5. Step 5: Solve for x
    x = 243,840.58/530.16
  6. Step 6: Final answer
    x = 459.94

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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.