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Finding the Fourth Proportional to 250,358.46, 345,475.65 and 142,913.88

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Solution

The fourth proportional to 250,358.46, 345,475.65 and 142,913.88 is: 197,210.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,358.46 : 345,475.65 = 142,913.88 : x
  2. Step 2: Convert to fraction form
    250,358.46/345,475.65 = 142,913.88/x
  3. Step 3: Cross multiply
    250,358.46x = 345,475.65 × 142,913.88
  4. Step 4: Simplify right side
    250,358.46x = 49,373,265,587.02
  5. Step 5: Solve for x
    x = 49,373,265,587.02/250,358.46
  6. Step 6: Final answer
    x = 197,210.29

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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.