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Finding the Fourth Proportional to 250,287.64, 345,400.86 and 137,102.92

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Solution

The fourth proportional to 250,287.64, 345,400.86 and 137,102.92 is: 189,204.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,287.64 : 345,400.86 = 137,102.92 : x
  2. Step 2: Convert to fraction form
    250,287.64/345,400.86 = 137,102.92/x
  3. Step 3: Cross multiply
    250,287.64x = 345,400.86 × 137,102.92
  4. Step 4: Simplify right side
    250,287.64x = 47,355,466,476.51
  5. Step 5: Solve for x
    x = 47,355,466,476.51/250,287.64
  6. Step 6: Final answer
    x = 189,204.18

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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.