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Finding the Fourth Proportional to 304,825.30, 457,237.95 and 138,613.30

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Solution

The fourth proportional to 304,825.30, 457,237.95 and 138,613.30 is: 207,919.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,825.30 : 457,237.95 = 138,613.30 : x
  2. Step 2: Convert to fraction form
    304,825.30/457,237.95 = 138,613.30/x
  3. Step 3: Cross multiply
    304,825.30x = 457,237.95 × 138,613.30
  4. Step 4: Simplify right side
    304,825.30x = 63,379,261,134.74
  5. Step 5: Solve for x
    x = 63,379,261,134.74/304,825.30
  6. Step 6: Final answer
    x = 207,919.95

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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.