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Finding the Fourth Proportional to 385,010.52, 577,598.20 and 115,159.84

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Solution

The fourth proportional to 385,010.52, 577,598.20 and 115,159.84 is: 172,764.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,010.52 : 577,598.20 = 115,159.84 : x
  2. Step 2: Convert to fraction form
    385,010.52/577,598.20 = 115,159.84/x
  3. Step 3: Cross multiply
    385,010.52x = 577,598.20 × 115,159.84
  4. Step 4: Simplify right side
    385,010.52x = 66,516,116,296.29
  5. Step 5: Solve for x
    x = 66,516,116,296.29/385,010.52
  6. Step 6: Final answer
    x = 172,764.41

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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.