Home / 305,555.38-458,345.49-145,549.06

Finding the Fourth Proportional to 305,555.38, 458,345.49 and 145,549.06

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Solution

The fourth proportional to 305,555.38, 458,345.49 and 145,549.06 is: 218,329.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,555.38 : 458,345.49 = 145,549.06 : x
  2. Step 2: Convert to fraction form
    305,555.38/458,345.49 = 145,549.06/x
  3. Step 3: Cross multiply
    305,555.38x = 458,345.49 × 145,549.06
  4. Step 4: Simplify right side
    305,555.38x = 66,711,755,224.74
  5. Step 5: Solve for x
    x = 66,711,755,224.74/305,555.38
  6. Step 6: Final answer
    x = 218,329.51

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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.