Home / 238,974.91-329,746.78-136,981.60

Finding the Fourth Proportional to 238,974.91, 329,746.78 and 136,981.60

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Solution

The fourth proportional to 238,974.91, 329,746.78 and 136,981.60 is: 189,012.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,974.91 : 329,746.78 = 136,981.60 : x
  2. Step 2: Convert to fraction form
    238,974.91/329,746.78 = 136,981.60/x
  3. Step 3: Cross multiply
    238,974.91x = 329,746.78 × 136,981.60
  4. Step 4: Simplify right side
    238,974.91x = 45,169,240,866.11
  5. Step 5: Solve for x
    x = 45,169,240,866.11/238,974.91
  6. Step 6: Final answer
    x = 189,012.48

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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.