Home / 239,338.28-330,281.12-130,446.06

Finding the Fourth Proportional to 239,338.28, 330,281.12 and 130,446.06

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Solution

The fourth proportional to 239,338.28, 330,281.12 and 130,446.06 is: 180,012.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,338.28 : 330,281.12 = 130,446.06 : x
  2. Step 2: Convert to fraction form
    239,338.28/330,281.12 = 130,446.06/x
  3. Step 3: Cross multiply
    239,338.28x = 330,281.12 × 130,446.06
  4. Step 4: Simplify right side
    239,338.28x = 43,083,870,796.39
  5. Step 5: Solve for x
    x = 43,083,870,796.39/239,338.28
  6. Step 6: Final answer
    x = 180,012.45

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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.