Home / 253,236.18-379,714.04-103,581.56

Finding the Fourth Proportional to 253,236.18, 379,714.04 and 103,581.56

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Solution

The fourth proportional to 253,236.18, 379,714.04 and 103,581.56 is: 155,314.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,236.18 : 379,714.04 = 103,581.56 : x
  2. Step 2: Convert to fraction form
    253,236.18/379,714.04 = 103,581.56/x
  3. Step 3: Cross multiply
    253,236.18x = 379,714.04 × 103,581.56
  4. Step 4: Simplify right side
    253,236.18x = 39,331,372,617.10
  5. Step 5: Solve for x
    x = 39,331,372,617.10/253,236.18
  6. Step 6: Final answer
    x = 155,314.98

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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.