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Finding the Fourth Proportional to 304,045.64, 419,701.38 and 272,159.40

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Solution

The fourth proportional to 304,045.64, 419,701.38 and 272,159.40 is: 375,685.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,045.64 : 419,701.38 = 272,159.40 : x
  2. Step 2: Convert to fraction form
    304,045.64/419,701.38 = 272,159.40/x
  3. Step 3: Cross multiply
    304,045.64x = 419,701.38 × 272,159.40
  4. Step 4: Simplify right side
    304,045.64x = 114,225,675,759.97
  5. Step 5: Solve for x
    x = 114,225,675,759.97/304,045.64
  6. Step 6: Final answer
    x = 375,685.95

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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.