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Finding the Fourth Proportional to 385,159.28, 577,622.28 and 104,640.08

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Solution

The fourth proportional to 385,159.28, 577,622.28 and 104,640.08 is: 156,928.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,159.28 : 577,622.28 = 104,640.08 : x
  2. Step 2: Convert to fraction form
    385,159.28/577,622.28 = 104,640.08/x
  3. Step 3: Cross multiply
    385,159.28x = 577,622.28 × 104,640.08
  4. Step 4: Simplify right side
    385,159.28x = 60,442,441,588.98
  5. Step 5: Solve for x
    x = 60,442,441,588.98/385,159.28
  6. Step 6: Final answer
    x = 156,928.43

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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.