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Finding the Fourth Proportional to 281,301.80, 388,181.46 and 153,952.76

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Solution

The fourth proportional to 281,301.80, 388,181.46 and 153,952.76 is: 212,446.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,301.80 : 388,181.46 = 153,952.76 : x
  2. Step 2: Convert to fraction form
    281,301.80/388,181.46 = 153,952.76/x
  3. Step 3: Cross multiply
    281,301.80x = 388,181.46 × 153,952.76
  4. Step 4: Simplify right side
    281,301.80x = 59,761,607,147.83
  5. Step 5: Solve for x
    x = 59,761,607,147.83/281,301.80
  6. Step 6: Final answer
    x = 212,446.59

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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.