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Finding the Fourth Proportional to 388,752.52, 583,128.54 and 222,423.88

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Solution

The fourth proportional to 388,752.52, 583,128.54 and 222,423.88 is: 333,635.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,752.52 : 583,128.54 = 222,423.88 : x
  2. Step 2: Convert to fraction form
    388,752.52/583,128.54 = 222,423.88/x
  3. Step 3: Cross multiply
    388,752.52x = 583,128.54 × 222,423.88
  4. Step 4: Simplify right side
    388,752.52x = 129,701,712,405.54
  5. Step 5: Solve for x
    x = 129,701,712,405.54/388,752.52
  6. Step 6: Final answer
    x = 333,635.68

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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.