Home / 250,958.34-346,318.20-137,780.28

Finding the Fourth Proportional to 250,958.34, 346,318.20 and 137,780.28

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Solution

The fourth proportional to 250,958.34, 346,318.20 and 137,780.28 is: 190,134.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,958.34 : 346,318.20 = 137,780.28 : x
  2. Step 2: Convert to fraction form
    250,958.34/346,318.20 = 137,780.28/x
  3. Step 3: Cross multiply
    250,958.34x = 346,318.20 × 137,780.28
  4. Step 4: Simplify right side
    250,958.34x = 47,715,818,565.10
  5. Step 5: Solve for x
    x = 47,715,818,565.10/250,958.34
  6. Step 6: Final answer
    x = 190,134.42

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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.