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Finding the Fourth Proportional to 388,882.62, 583,326.36 and 108,402.30

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Solution

The fourth proportional to 388,882.62, 583,326.36 and 108,402.30 is: 162,604.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,882.62 : 583,326.36 = 108,402.30 : x
  2. Step 2: Convert to fraction form
    388,882.62/583,326.36 = 108,402.30/x
  3. Step 3: Cross multiply
    388,882.62x = 583,326.36 × 108,402.30
  4. Step 4: Simplify right side
    388,882.62x = 63,233,919,074.63
  5. Step 5: Solve for x
    x = 63,233,919,074.63/388,882.62
  6. Step 6: Final answer
    x = 162,604.13

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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.