Home / 396,444.18-547,083.54-215,148.36

Finding the Fourth Proportional to 396,444.18, 547,083.54 and 215,148.36

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Solution

The fourth proportional to 396,444.18, 547,083.54 and 215,148.36 is: 296,899.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,444.18 : 547,083.54 = 215,148.36 : x
  2. Step 2: Convert to fraction form
    396,444.18/547,083.54 = 215,148.36/x
  3. Step 3: Cross multiply
    396,444.18x = 547,083.54 × 215,148.36
  4. Step 4: Simplify right side
    396,444.18x = 117,704,126,413.99
  5. Step 5: Solve for x
    x = 117,704,126,413.99/396,444.18
  6. Step 6: Final answer
    x = 296,899.62

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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.