Home / 281,131.20-421,768.80-162,590.40

Finding the Fourth Proportional to 281,131.20, 421,768.80 and 162,590.40

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Solution

The fourth proportional to 281,131.20, 421,768.80 and 162,590.40 is: 243,927.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,131.20 : 421,768.80 = 162,590.40 : x
  2. Step 2: Convert to fraction form
    281,131.20/421,768.80 = 162,590.40/x
  3. Step 3: Cross multiply
    281,131.20x = 421,768.80 × 162,590.40
  4. Step 4: Simplify right side
    281,131.20x = 68,575,557,899.52
  5. Step 5: Solve for x
    x = 68,575,557,899.52/281,131.20
  6. Step 6: Final answer
    x = 243,927.24

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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.