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Finding the Fourth Proportional to 396,313.79, 594,345.80 and 130,012.25

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Solution

The fourth proportional to 396,313.79, 594,345.80 and 130,012.25 is: 194,977.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,313.79 : 594,345.80 = 130,012.25 : x
  2. Step 2: Convert to fraction form
    396,313.79/594,345.80 = 130,012.25/x
  3. Step 3: Cross multiply
    396,313.79x = 594,345.80 × 130,012.25
  4. Step 4: Simplify right side
    396,313.79x = 77,272,231,114.26
  5. Step 5: Solve for x
    x = 77,272,231,114.26/396,313.79
  6. Step 6: Final answer
    x = 194,977.40

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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.