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Finding the Fourth Proportional to 250,357, 345,500.76 and 137,187.04

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Solution

The fourth proportional to 250,357, 345,500.76 and 137,187.04 is: 189,322.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,357 : 345,500.76 = 137,187.04 : x
  2. Step 2: Convert to fraction form
    250,357/345,500.76 = 137,187.04/x
  3. Step 3: Cross multiply
    250,357x = 345,500.76 × 137,187.04
  4. Step 4: Simplify right side
    250,357x = 47,398,226,582.15
  5. Step 5: Solve for x
    x = 47,398,226,582.15/250,357
  6. Step 6: Final answer
    x = 189,322.55

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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.