Home / 281,142.33-387,966.75-160,322.49

Finding the Fourth Proportional to 281,142.33, 387,966.75 and 160,322.49

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Solution

The fourth proportional to 281,142.33, 387,966.75 and 160,322.49 is: 221,239.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,142.33 : 387,966.75 = 160,322.49 : x
  2. Step 2: Convert to fraction form
    281,142.33/387,966.75 = 160,322.49/x
  3. Step 3: Cross multiply
    281,142.33x = 387,966.75 × 160,322.49
  4. Step 4: Simplify right side
    281,142.33x = 62,199,795,397.21
  5. Step 5: Solve for x
    x = 62,199,795,397.21/281,142.33
  6. Step 6: Final answer
    x = 221,239.52

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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.