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Finding the Fourth Proportional to 288,458.10, 432,728.15 and 88,795.13

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Solution

The fourth proportional to 288,458.10, 432,728.15 and 88,795.13 is: 133,205.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,458.10 : 432,728.15 = 88,795.13 : x
  2. Step 2: Convert to fraction form
    288,458.10/432,728.15 = 88,795.13/x
  3. Step 3: Cross multiply
    288,458.10x = 432,728.15 × 88,795.13
  4. Step 4: Simplify right side
    288,458.10x = 38,424,149,726.29
  5. Step 5: Solve for x
    x = 38,424,149,726.29/288,458.10
  6. Step 6: Final answer
    x = 133,205.31

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.