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Finding the Fourth Proportional to 315,209.53, 435,001.35 and 179,255.89

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Solution

The fourth proportional to 315,209.53, 435,001.35 and 179,255.89 is: 247,380.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,209.53 : 435,001.35 = 179,255.89 : x
  2. Step 2: Convert to fraction form
    315,209.53/435,001.35 = 179,255.89/x
  3. Step 3: Cross multiply
    315,209.53x = 435,001.35 × 179,255.89
  4. Step 4: Simplify right side
    315,209.53x = 77,976,554,145.45
  5. Step 5: Solve for x
    x = 77,976,554,145.45/315,209.53
  6. Step 6: Final answer
    x = 247,380.07

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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.