Home / 315,349.62-435,184.02-172,113

Finding the Fourth Proportional to 315,349.62, 435,184.02 and 172,113

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Solution

The fourth proportional to 315,349.62, 435,184.02 and 172,113 is: 237,516.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,349.62 : 435,184.02 = 172,113 : x
  2. Step 2: Convert to fraction form
    315,349.62/435,184.02 = 172,113/x
  3. Step 3: Cross multiply
    315,349.62x = 435,184.02 × 172,113
  4. Step 4: Simplify right side
    315,349.62x = 74,900,827,234.26
  5. Step 5: Solve for x
    x = 74,900,827,234.26/315,349.62
  6. Step 6: Final answer
    x = 237,516.78

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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.