Home / 396,743.12-547,372.32-224,637.60

Finding the Fourth Proportional to 396,743.12, 547,372.32 and 224,637.60

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Solution

The fourth proportional to 396,743.12, 547,372.32 and 224,637.60 is: 309,924.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,743.12 : 547,372.32 = 224,637.60 : x
  2. Step 2: Convert to fraction form
    396,743.12/547,372.32 = 224,637.60/x
  3. Step 3: Cross multiply
    396,743.12x = 547,372.32 × 224,637.60
  4. Step 4: Simplify right side
    396,743.12x = 122,960,404,271.23
  5. Step 5: Solve for x
    x = 122,960,404,271.23/396,743.12
  6. Step 6: Final answer
    x = 309,924.48

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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.