Home / 238,490.20-329,147.58-153,853.48

Finding the Fourth Proportional to 238,490.20, 329,147.58 and 153,853.48

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Solution

The fourth proportional to 238,490.20, 329,147.58 and 153,853.48 is: 212,337.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,490.20 : 329,147.58 = 153,853.48 : x
  2. Step 2: Convert to fraction form
    238,490.20/329,147.58 = 153,853.48/x
  3. Step 3: Cross multiply
    238,490.20x = 329,147.58 × 153,853.48
  4. Step 4: Simplify right side
    238,490.20x = 50,640,500,616.58
  5. Step 5: Solve for x
    x = 50,640,500,616.58/238,490.20
  6. Step 6: Final answer
    x = 212,337.87

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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.