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Finding the Fourth Proportional to 250,342.08, 345,472.44 and 137,164.80

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Solution

The fourth proportional to 250,342.08, 345,472.44 and 137,164.80 is: 189,287.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,342.08 : 345,472.44 = 137,164.80 : x
  2. Step 2: Convert to fraction form
    250,342.08/345,472.44 = 137,164.80/x
  3. Step 3: Cross multiply
    250,342.08x = 345,472.44 × 137,164.80
  4. Step 4: Simplify right side
    250,342.08x = 47,386,658,138.11
  5. Step 5: Solve for x
    x = 47,386,658,138.11/250,342.08
  6. Step 6: Final answer
    x = 189,287.63

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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.