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Finding the Fourth Proportional to 272,292.60, 408,511.80 and 242,913.90

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Solution

The fourth proportional to 272,292.60, 408,511.80 and 242,913.90 is: 364,435.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,292.60 : 408,511.80 = 242,913.90 : x
  2. Step 2: Convert to fraction form
    272,292.60/408,511.80 = 242,913.90/x
  3. Step 3: Cross multiply
    272,292.60x = 408,511.80 × 242,913.90
  4. Step 4: Simplify right side
    272,292.60x = 99,233,194,534.02
  5. Step 5: Solve for x
    x = 99,233,194,534.02/272,292.60
  6. Step 6: Final answer
    x = 364,435.88

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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.