Home / 253,440.13-380,012.56-111,279.73

Finding the Fourth Proportional to 253,440.13, 380,012.56 and 111,279.73

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Solution

The fourth proportional to 253,440.13, 380,012.56 and 111,279.73 is: 166,854.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,440.13 : 380,012.56 = 111,279.73 : x
  2. Step 2: Convert to fraction form
    253,440.13/380,012.56 = 111,279.73/x
  3. Step 3: Cross multiply
    253,440.13x = 380,012.56 × 111,279.73
  4. Step 4: Simplify right side
    253,440.13x = 42,287,695,073.41
  5. Step 5: Solve for x
    x = 42,287,695,073.41/253,440.13
  6. Step 6: Final answer
    x = 166,854.77

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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.