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Finding the Fourth Proportional to 363,925.52, 545,888.28 and 142,154

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Solution

The fourth proportional to 363,925.52, 545,888.28 and 142,154 is: 213,231.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    363,925.52 : 545,888.28 = 142,154 : x
  2. Step 2: Convert to fraction form
    363,925.52/545,888.28 = 142,154/x
  3. Step 3: Cross multiply
    363,925.52x = 545,888.28 × 142,154
  4. Step 4: Simplify right side
    363,925.52x = 77,600,202,555.12
  5. Step 5: Solve for x
    x = 77,600,202,555.12/363,925.52
  6. Step 6: Final answer
    x = 213,231.00

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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.