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Finding the Fourth Proportional to 225,330.69, 310,956.35 and 124,728.69

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Solution

The fourth proportional to 225,330.69, 310,956.35 and 124,728.69 is: 172,125.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,330.69 : 310,956.35 = 124,728.69 : x
  2. Step 2: Convert to fraction form
    225,330.69/310,956.35 = 124,728.69/x
  3. Step 3: Cross multiply
    225,330.69x = 310,956.35 × 124,728.69
  4. Step 4: Simplify right side
    225,330.69x = 38,785,178,182.68
  5. Step 5: Solve for x
    x = 38,785,178,182.68/225,330.69
  6. Step 6: Final answer
    x = 172,125.59

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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.