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Finding the Fourth Proportional to 225,319.35, 310,955.76 and 129,832.23

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Solution

The fourth proportional to 225,319.35, 310,955.76 and 129,832.23 is: 179,177.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,319.35 : 310,955.76 = 129,832.23 : x
  2. Step 2: Convert to fraction form
    225,319.35/310,955.76 = 129,832.23/x
  3. Step 3: Cross multiply
    225,319.35x = 310,955.76 × 129,832.23
  4. Step 4: Simplify right side
    225,319.35x = 40,372,079,752.14
  5. Step 5: Solve for x
    x = 40,372,079,752.14/225,319.35
  6. Step 6: Final answer
    x = 179,177.15

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.