Home / 245,313.47-338,542.19-137,883.17

Finding the Fourth Proportional to 245,313.47, 338,542.19 and 137,883.17

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Solution

The fourth proportional to 245,313.47, 338,542.19 and 137,883.17 is: 190,284.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,313.47 : 338,542.19 = 137,883.17 : x
  2. Step 2: Convert to fraction form
    245,313.47/338,542.19 = 137,883.17/x
  3. Step 3: Cross multiply
    245,313.47x = 338,542.19 × 137,883.17
  4. Step 4: Simplify right side
    245,313.47x = 46,679,271,009.94
  5. Step 5: Solve for x
    x = 46,679,271,009.94/245,313.47
  6. Step 6: Final answer
    x = 190,284.17

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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.