Home / 278,470.48-384,289.68-151,146.13

Finding the Fourth Proportional to 278,470.48, 384,289.68 and 151,146.13

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Solution

The fourth proportional to 278,470.48, 384,289.68 and 151,146.13 is: 208,581.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,470.48 : 384,289.68 = 151,146.13 : x
  2. Step 2: Convert to fraction form
    278,470.48/384,289.68 = 151,146.13/x
  3. Step 3: Cross multiply
    278,470.48x = 384,289.68 × 151,146.13
  4. Step 4: Simplify right side
    278,470.48x = 58,083,897,930.94
  5. Step 5: Solve for x
    x = 58,083,897,930.94/278,470.48
  6. Step 6: Final answer
    x = 208,581.89

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.