Home / 281,476.38-388,429.82-160,615.48

Finding the Fourth Proportional to 281,476.38, 388,429.82 and 160,615.48

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Solution

The fourth proportional to 281,476.38, 388,429.82 and 160,615.48 is: 221,645.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,476.38 : 388,429.82 = 160,615.48 : x
  2. Step 2: Convert to fraction form
    281,476.38/388,429.82 = 160,615.48/x
  3. Step 3: Cross multiply
    281,476.38x = 388,429.82 × 160,615.48
  4. Step 4: Simplify right side
    281,476.38x = 62,387,841,985.61
  5. Step 5: Solve for x
    x = 62,387,841,985.61/281,476.38
  6. Step 6: Final answer
    x = 221,645.03

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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.