Home / 396,412.18-547,050.24-215,124.05

Finding the Fourth Proportional to 396,412.18, 547,050.24 and 215,124.05

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Solution

The fourth proportional to 396,412.18, 547,050.24 and 215,124.05 is: 296,871.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,412.18 : 547,050.24 = 215,124.05 : x
  2. Step 2: Convert to fraction form
    396,412.18/547,050.24 = 215,124.05/x
  3. Step 3: Cross multiply
    396,412.18x = 547,050.24 × 215,124.05
  4. Step 4: Simplify right side
    396,412.18x = 117,683,664,549.90
  5. Step 5: Solve for x
    x = 117,683,664,549.90/396,412.18
  6. Step 6: Final answer
    x = 296,871.97

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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.