Home / 281,645.49-388,686.33-160,825.59

Finding the Fourth Proportional to 281,645.49, 388,686.33 and 160,825.59

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Solution

The fourth proportional to 281,645.49, 388,686.33 and 160,825.59 is: 221,948.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,645.49 : 388,686.33 = 160,825.59 : x
  2. Step 2: Convert to fraction form
    281,645.49/388,686.33 = 160,825.59/x
  3. Step 3: Cross multiply
    281,645.49x = 388,686.33 × 160,825.59
  4. Step 4: Simplify right side
    281,645.49x = 62,510,708,347.18
  5. Step 5: Solve for x
    x = 62,510,708,347.18/281,645.49
  6. Step 6: Final answer
    x = 221,948.20

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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.