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Finding the Fourth Proportional to 457,198.88, 630,920.56 and 253,241.76

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Solution

The fourth proportional to 457,198.88, 630,920.56 and 253,241.76 is: 349,465.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,198.88 : 630,920.56 = 253,241.76 : x
  2. Step 2: Convert to fraction form
    457,198.88/630,920.56 = 253,241.76/x
  3. Step 3: Cross multiply
    457,198.88x = 630,920.56 × 253,241.76
  4. Step 4: Simplify right side
    457,198.88x = 159,775,433,034.59
  5. Step 5: Solve for x
    x = 159,775,433,034.59/457,198.88
  6. Step 6: Final answer
    x = 349,465.93

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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.