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Finding the Fourth Proportional to 385,099.52, 577,752.32 and 118,849.28

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Solution

The fourth proportional to 385,099.52, 577,752.32 and 118,849.28 is: 178,305.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,099.52 : 577,752.32 = 118,849.28 : x
  2. Step 2: Convert to fraction form
    385,099.52/577,752.32 = 118,849.28/x
  3. Step 3: Cross multiply
    385,099.52x = 577,752.32 × 118,849.28
  4. Step 4: Simplify right side
    385,099.52x = 68,665,447,250.33
  5. Step 5: Solve for x
    x = 68,665,447,250.33/385,099.52
  6. Step 6: Final answer
    x = 178,305.72

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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.