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Finding the Fourth Proportional to 225,044.71, 310,591.07 and 129,555.43

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Solution

The fourth proportional to 225,044.71, 310,591.07 and 129,555.43 is: 178,803.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,044.71 : 310,591.07 = 129,555.43 : x
  2. Step 2: Convert to fraction form
    225,044.71/310,591.07 = 129,555.43/x
  3. Step 3: Cross multiply
    225,044.71x = 310,591.07 × 129,555.43
  4. Step 4: Simplify right side
    225,044.71x = 40,238,759,628.01
  5. Step 5: Solve for x
    x = 40,238,759,628.01/225,044.71
  6. Step 6: Final answer
    x = 178,803.40

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1.5x scale

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.