Home / 281,020.77-387,799.05-160,200.96

Finding the Fourth Proportional to 281,020.77, 387,799.05 and 160,200.96

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Solution

The fourth proportional to 281,020.77, 387,799.05 and 160,200.96 is: 221,071.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,020.77 : 387,799.05 = 160,200.96 : x
  2. Step 2: Convert to fraction form
    281,020.77/387,799.05 = 160,200.96/x
  3. Step 3: Cross multiply
    281,020.77x = 387,799.05 × 160,200.96
  4. Step 4: Simplify right side
    281,020.77x = 62,125,780,465.83
  5. Step 5: Solve for x
    x = 62,125,780,465.83/281,020.77
  6. Step 6: Final answer
    x = 221,071.85

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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.