Home / 239,389.38-330,355.14-130,493.70

Finding the Fourth Proportional to 239,389.38, 330,355.14 and 130,493.70

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Solution

The fourth proportional to 239,389.38, 330,355.14 and 130,493.70 is: 180,080.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,389.38 : 330,355.14 = 130,493.70 : x
  2. Step 2: Convert to fraction form
    239,389.38/330,355.14 = 130,493.70/x
  3. Step 3: Cross multiply
    239,389.38x = 330,355.14 × 130,493.70
  4. Step 4: Simplify right side
    239,389.38x = 43,109,264,532.62
  5. Step 5: Solve for x
    x = 43,109,264,532.62/239,389.38
  6. Step 6: Final answer
    x = 180,080.10

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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.