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Finding the Fourth Proportional to 318,754.74, 439,891.22 and 175,519.91

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Solution

The fourth proportional to 318,754.74, 439,891.22 and 175,519.91 is: 242,222.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,754.74 : 439,891.22 = 175,519.91 : x
  2. Step 2: Convert to fraction form
    318,754.74/439,891.22 = 175,519.91/x
  3. Step 3: Cross multiply
    318,754.74x = 439,891.22 × 175,519.91
  4. Step 4: Simplify right side
    318,754.74x = 77,209,667,344.19
  5. Step 5: Solve for x
    x = 77,209,667,344.19/318,754.74
  6. Step 6: Final answer
    x = 242,222.81

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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.