Home / 281,024.74-421,490.98-121,057.30

Finding the Fourth Proportional to 281,024.74, 421,490.98 and 121,057.30

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Solution

The fourth proportional to 281,024.74, 421,490.98 and 121,057.30 is: 181,566.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,024.74 : 421,490.98 = 121,057.30 : x
  2. Step 2: Convert to fraction form
    281,024.74/421,490.98 = 121,057.30/x
  3. Step 3: Cross multiply
    281,024.74x = 421,490.98 × 121,057.30
  4. Step 4: Simplify right side
    281,024.74x = 51,024,560,013.15
  5. Step 5: Solve for x
    x = 51,024,560,013.15/281,024.74
  6. Step 6: Final answer
    x = 181,566.08

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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.