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Finding the Fourth Proportional to 288,108.27, 432,146.01 and 88,428.39

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Solution

The fourth proportional to 288,108.27, 432,146.01 and 88,428.39 is: 132,637.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,108.27 : 432,146.01 = 88,428.39 : x
  2. Step 2: Convert to fraction form
    288,108.27/432,146.01 = 88,428.39/x
  3. Step 3: Cross multiply
    288,108.27x = 432,146.01 × 88,428.39
  4. Step 4: Simplify right side
    288,108.27x = 38,213,975,909.22
  5. Step 5: Solve for x
    x = 38,213,975,909.22/288,108.27
  6. Step 6: Final answer
    x = 132,637.55

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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.