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Finding the Fourth Proportional to 363,019.32, 500,886.59 and 217,758.78

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Solution

The fourth proportional to 363,019.32, 500,886.59 and 217,758.78 is: 300,459.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    363,019.32 : 500,886.59 = 217,758.78 : x
  2. Step 2: Convert to fraction form
    363,019.32/500,886.59 = 217,758.78/x
  3. Step 3: Cross multiply
    363,019.32x = 500,886.59 × 217,758.78
  4. Step 4: Simplify right side
    363,019.32x = 109,072,451,667.97
  5. Step 5: Solve for x
    x = 109,072,451,667.97/363,019.32
  6. Step 6: Final answer
    x = 300,459.08

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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.