Home / 280,999.32-421,562.16-147,942.24

Finding the Fourth Proportional to 280,999.32, 421,562.16 and 147,942.24

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Solution

The fourth proportional to 280,999.32, 421,562.16 and 147,942.24 is: 221,946.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,999.32 : 421,562.16 = 147,942.24 : x
  2. Step 2: Convert to fraction form
    280,999.32/421,562.16 = 147,942.24/x
  3. Step 3: Cross multiply
    280,999.32x = 421,562.16 × 147,942.24
  4. Step 4: Simplify right side
    280,999.32x = 62,366,850,249.64
  5. Step 5: Solve for x
    x = 62,366,850,249.64/280,999.32
  6. Step 6: Final answer
    x = 221,946.62

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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.