Home / 239,439.70-330,425.04-130,543.66

Finding the Fourth Proportional to 239,439.70, 330,425.04 and 130,543.66

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Solution

The fourth proportional to 239,439.70, 330,425.04 and 130,543.66 is: 180,149.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,439.70 : 330,425.04 = 130,543.66 : x
  2. Step 2: Convert to fraction form
    239,439.70/330,425.04 = 130,543.66/x
  3. Step 3: Cross multiply
    239,439.70x = 330,425.04 × 130,543.66
  4. Step 4: Simplify right side
    239,439.70x = 43,134,894,077.25
  5. Step 5: Solve for x
    x = 43,134,894,077.25/239,439.70
  6. Step 6: Final answer
    x = 180,149.30

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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.