Home / 281,476.19-388,429.56-160,615.28

Finding the Fourth Proportional to 281,476.19, 388,429.56 and 160,615.28

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Solution

The fourth proportional to 281,476.19, 388,429.56 and 160,615.28 is: 221,644.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,476.19 : 388,429.56 = 160,615.28 : x
  2. Step 2: Convert to fraction form
    281,476.19/388,429.56 = 160,615.28/x
  3. Step 3: Cross multiply
    281,476.19x = 388,429.56 × 160,615.28
  4. Step 4: Simplify right side
    281,476.19x = 62,387,723,510.75
  5. Step 5: Solve for x
    x = 62,387,723,510.75/281,476.19
  6. Step 6: Final answer
    x = 221,644.76

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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.