Home / 245,140.14-338,275.22-137,728.08

Finding the Fourth Proportional to 245,140.14, 338,275.22 and 137,728.08

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Solution

The fourth proportional to 245,140.14, 338,275.22 and 137,728.08 is: 190,054.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,140.14 : 338,275.22 = 137,728.08 : x
  2. Step 2: Convert to fraction form
    245,140.14/338,275.22 = 137,728.08/x
  3. Step 3: Cross multiply
    245,140.14x = 338,275.22 × 137,728.08
  4. Step 4: Simplify right side
    245,140.14x = 46,589,996,562.18
  5. Step 5: Solve for x
    x = 46,589,996,562.18/245,140.14
  6. Step 6: Final answer
    x = 190,054.54

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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.