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Finding the Fourth Proportional to 186,750.30, 280,125.45 and 153,945.30

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Solution

The fourth proportional to 186,750.30, 280,125.45 and 153,945.30 is: 230,917.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,750.30 : 280,125.45 = 153,945.30 : x
  2. Step 2: Convert to fraction form
    186,750.30/280,125.45 = 153,945.30/x
  3. Step 3: Cross multiply
    186,750.30x = 280,125.45 × 153,945.30
  4. Step 4: Simplify right side
    186,750.30x = 43,123,996,437.89
  5. Step 5: Solve for x
    x = 43,123,996,437.89/186,750.30
  6. Step 6: Final answer
    x = 230,917.95

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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.