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Finding the Fourth Proportional to 289,233.52, 399,904.22 and 253,320.72

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Solution

The fourth proportional to 289,233.52, 399,904.22 and 253,320.72 is: 350,249.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,233.52 : 399,904.22 = 253,320.72 : x
  2. Step 2: Convert to fraction form
    289,233.52/399,904.22 = 253,320.72/x
  3. Step 3: Cross multiply
    289,233.52x = 399,904.22 × 253,320.72
  4. Step 4: Simplify right side
    289,233.52x = 101,304,024,075.10
  5. Step 5: Solve for x
    x = 101,304,024,075.10/289,233.52
  6. Step 6: Final answer
    x = 350,249.95

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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.