Home / 250,397.91-345,547.92-137,220.66

Finding the Fourth Proportional to 250,397.91, 345,547.92 and 137,220.66

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Solution

The fourth proportional to 250,397.91, 345,547.92 and 137,220.66 is: 189,363.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,397.91 : 345,547.92 = 137,220.66 : x
  2. Step 2: Convert to fraction form
    250,397.91/345,547.92 = 137,220.66/x
  3. Step 3: Cross multiply
    250,397.91x = 345,547.92 × 137,220.66
  4. Step 4: Simplify right side
    250,397.91x = 47,416,313,644.03
  5. Step 5: Solve for x
    x = 47,416,313,644.03/250,397.91
  6. Step 6: Final answer
    x = 189,363.86

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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.