Home / 281,252.20-388,108.56-160,398.60

Finding the Fourth Proportional to 281,252.20, 388,108.56 and 160,398.60

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Solution

The fourth proportional to 281,252.20, 388,108.56 and 160,398.60 is: 221,338.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,252.20 : 388,108.56 = 160,398.60 : x
  2. Step 2: Convert to fraction form
    281,252.20/388,108.56 = 160,398.60/x
  3. Step 3: Cross multiply
    281,252.20x = 388,108.56 × 160,398.60
  4. Step 4: Simplify right side
    281,252.20x = 62,252,069,672.02
  5. Step 5: Solve for x
    x = 62,252,069,672.02/281,252.20
  6. Step 6: Final answer
    x = 221,338.96

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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.