Home / 239,251.42-330,167.28-130,355.20

Finding the Fourth Proportional to 239,251.42, 330,167.28 and 130,355.20

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Solution

The fourth proportional to 239,251.42, 330,167.28 and 130,355.20 is: 179,890.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,251.42 : 330,167.28 = 130,355.20 : x
  2. Step 2: Convert to fraction form
    239,251.42/330,167.28 = 130,355.20/x
  3. Step 3: Cross multiply
    239,251.42x = 330,167.28 × 130,355.20
  4. Step 4: Simplify right side
    239,251.42x = 43,039,021,817.86
  5. Step 5: Solve for x
    x = 43,039,021,817.86/239,251.42
  6. Step 6: Final answer
    x = 179,890.35

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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.