Home / 250,320.65-345,451.31-137,143.49

Finding the Fourth Proportional to 250,320.65, 345,451.31 and 137,143.49

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Solution

The fourth proportional to 250,320.65, 345,451.31 and 137,143.49 is: 189,262.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,320.65 : 345,451.31 = 137,143.49 : x
  2. Step 2: Convert to fraction form
    250,320.65/345,451.31 = 137,143.49/x
  3. Step 3: Cross multiply
    250,320.65x = 345,451.31 × 137,143.49
  4. Step 4: Simplify right side
    250,320.65x = 47,376,398,278.47
  5. Step 5: Solve for x
    x = 47,376,398,278.47/250,320.65
  6. Step 6: Final answer
    x = 189,262.84

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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.