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Finding the Fourth Proportional to 552,667.20, 829,438.20 and 215,869.20

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Solution

The fourth proportional to 552,667.20, 829,438.20 and 215,869.20 is: 323,974.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    552,667.20 : 829,438.20 = 215,869.20 : x
  2. Step 2: Convert to fraction form
    552,667.20/829,438.20 = 215,869.20/x
  3. Step 3: Cross multiply
    552,667.20x = 829,438.20 × 215,869.20
  4. Step 4: Simplify right side
    552,667.20x = 179,050,160,683.44
  5. Step 5: Solve for x
    x = 179,050,160,683.44/552,667.20
  6. Step 6: Final answer
    x = 323,974.65

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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.