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Finding the Fourth Proportional to 281,377.13, 388,337.49 and 160,490.70

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Solution

The fourth proportional to 281,377.13, 388,337.49 and 160,490.70 is: 221,498.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,377.13 : 388,337.49 = 160,490.70 : x
  2. Step 2: Convert to fraction form
    281,377.13/388,337.49 = 160,490.70/x
  3. Step 3: Cross multiply
    281,377.13x = 388,337.49 × 160,490.70
  4. Step 4: Simplify right side
    281,377.13x = 62,324,555,606.34
  5. Step 5: Solve for x
    x = 62,324,555,606.34/281,377.13
  6. Step 6: Final answer
    x = 221,498.30

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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.