Home / 281,531.08-421,888.38-155,197

Finding the Fourth Proportional to 281,531.08, 421,888.38 and 155,197

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Solution

The fourth proportional to 281,531.08, 421,888.38 and 155,197 is: 232,570.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,531.08 : 421,888.38 = 155,197 : x
  2. Step 2: Convert to fraction form
    281,531.08/421,888.38 = 155,197/x
  3. Step 3: Cross multiply
    281,531.08x = 421,888.38 × 155,197
  4. Step 4: Simplify right side
    281,531.08x = 65,475,810,910.86
  5. Step 5: Solve for x
    x = 65,475,810,910.86/281,531.08
  6. Step 6: Final answer
    x = 232,570.45

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.