Home / 245,116.12-338,260.40-137,686.20

Finding the Fourth Proportional to 245,116.12, 338,260.40 and 137,686.20

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Solution

The fourth proportional to 245,116.12, 338,260.40 and 137,686.20 is: 190,007.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,116.12 : 338,260.40 = 137,686.20 : x
  2. Step 2: Convert to fraction form
    245,116.12/338,260.40 = 137,686.20/x
  3. Step 3: Cross multiply
    245,116.12x = 338,260.40 × 137,686.20
  4. Step 4: Simplify right side
    245,116.12x = 46,573,789,086.48
  5. Step 5: Solve for x
    x = 46,573,789,086.48/245,116.12
  6. Step 6: Final answer
    x = 190,007.04

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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.