Home / 281,306.85-421,931.12-148,133.13

Finding the Fourth Proportional to 281,306.85, 421,931.12 and 148,133.13

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Solution

The fourth proportional to 281,306.85, 421,931.12 and 148,133.13 is: 222,184.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,306.85 : 421,931.12 = 148,133.13 : x
  2. Step 2: Convert to fraction form
    281,306.85/421,931.12 = 148,133.13/x
  3. Step 3: Cross multiply
    281,306.85x = 421,931.12 × 148,133.13
  4. Step 4: Simplify right side
    281,306.85x = 62,501,976,709.34
  5. Step 5: Solve for x
    x = 62,501,976,709.34/281,306.85
  6. Step 6: Final answer
    x = 222,184.34

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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.