Home / 239,432.75-330,417.12-137,464.82

Finding the Fourth Proportional to 239,432.75, 330,417.12 and 137,464.82

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Solution

The fourth proportional to 239,432.75, 330,417.12 and 137,464.82 is: 189,701.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,432.75 : 330,417.12 = 137,464.82 : x
  2. Step 2: Convert to fraction form
    239,432.75/330,417.12 = 137,464.82/x
  3. Step 3: Cross multiply
    239,432.75x = 330,417.12 × 137,464.82
  4. Step 4: Simplify right side
    239,432.75x = 45,420,729,925.72
  5. Step 5: Solve for x
    x = 45,420,729,925.72/239,432.75
  6. Step 6: Final answer
    x = 189,701.41

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Half scale
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Double scale
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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.