Home / 396,442.57-547,091.03-215,154.46

Finding the Fourth Proportional to 396,442.57, 547,091.03 and 215,154.46

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Solution

The fourth proportional to 396,442.57, 547,091.03 and 215,154.46 is: 296,913.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,442.57 : 547,091.03 = 215,154.46 : x
  2. Step 2: Convert to fraction form
    396,442.57/547,091.03 = 215,154.46/x
  3. Step 3: Cross multiply
    396,442.57x = 547,091.03 × 215,154.46
  4. Step 4: Simplify right side
    396,442.57x = 117,709,075,130.49
  5. Step 5: Solve for x
    x = 117,709,075,130.49/396,442.57
  6. Step 6: Final answer
    x = 296,913.31

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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.