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Finding the Fourth Proportional to 396,278.93, 546,924.96 and 253,134.32

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Solution

The fourth proportional to 396,278.93, 546,924.96 and 253,134.32 is: 349,363.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,278.93 : 546,924.96 = 253,134.32 : x
  2. Step 2: Convert to fraction form
    396,278.93/546,924.96 = 253,134.32/x
  3. Step 3: Cross multiply
    396,278.93x = 546,924.96 × 253,134.32
  4. Step 4: Simplify right side
    396,278.93x = 138,445,475,106.00
  5. Step 5: Solve for x
    x = 138,445,475,106.00/396,278.93
  6. Step 6: Final answer
    x = 349,363.70

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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.