Home / 281,780.11-388,799.08-167,008.15

Finding the Fourth Proportional to 281,780.11, 388,799.08 and 167,008.15

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Solution

The fourth proportional to 281,780.11, 388,799.08 and 167,008.15 is: 230,437.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,780.11 : 388,799.08 = 167,008.15 : x
  2. Step 2: Convert to fraction form
    281,780.11/388,799.08 = 167,008.15/x
  3. Step 3: Cross multiply
    281,780.11x = 388,799.08 × 167,008.15
  4. Step 4: Simplify right side
    281,780.11x = 64,932,615,072.50
  5. Step 5: Solve for x
    x = 64,932,615,072.50/281,780.11
  6. Step 6: Final answer
    x = 230,437.18

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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.