Home / 281,566.40-421,760.80-131,934.40

Finding the Fourth Proportional to 281,566.40, 421,760.80 and 131,934.40

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Solution

The fourth proportional to 281,566.40, 421,760.80 and 131,934.40 is: 197,625.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,566.40 : 421,760.80 = 131,934.40 : x
  2. Step 2: Convert to fraction form
    281,566.40/421,760.80 = 131,934.40/x
  3. Step 3: Cross multiply
    281,566.40x = 421,760.80 × 131,934.40
  4. Step 4: Simplify right side
    281,566.40x = 55,644,758,091.52
  5. Step 5: Solve for x
    x = 55,644,758,091.52/281,566.40
  6. Step 6: Final answer
    x = 197,625.70

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1.5x scale

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.