Home / 245,456.45-338,727.77-138,024.18

Finding the Fourth Proportional to 245,456.45, 338,727.77 and 138,024.18

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Solution

The fourth proportional to 245,456.45, 338,727.77 and 138,024.18 is: 190,472.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,456.45 : 338,727.77 = 138,024.18 : x
  2. Step 2: Convert to fraction form
    245,456.45/338,727.77 = 138,024.18/x
  3. Step 3: Cross multiply
    245,456.45x = 338,727.77 × 138,024.18
  4. Step 4: Simplify right side
    245,456.45x = 46,752,622,007.36
  5. Step 5: Solve for x
    x = 46,752,622,007.36/245,456.45
  6. Step 6: Final answer
    x = 190,472.17

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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.