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Finding the Fourth Proportional to 281,586.80, 388,608.36 and 160,752.56

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Solution

The fourth proportional to 281,586.80, 388,608.36 and 160,752.56 is: 221,849.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,586.80 : 388,608.36 = 160,752.56 : x
  2. Step 2: Convert to fraction form
    281,586.80/388,608.36 = 160,752.56/x
  3. Step 3: Cross multiply
    281,586.80x = 388,608.36 × 160,752.56
  4. Step 4: Simplify right side
    281,586.80x = 62,469,788,707.40
  5. Step 5: Solve for x
    x = 62,469,788,707.40/281,586.80
  6. Step 6: Final answer
    x = 221,849.14

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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.