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Finding the Fourth Proportional to 318,725.44, 439,859.28 and 175,516

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Solution

The fourth proportional to 318,725.44, 439,859.28 and 175,516 is: 242,222.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,725.44 : 439,859.28 = 175,516 : x
  2. Step 2: Convert to fraction form
    318,725.44/439,859.28 = 175,516/x
  3. Step 3: Cross multiply
    318,725.44x = 439,859.28 × 175,516
  4. Step 4: Simplify right side
    318,725.44x = 77,202,341,388.48
  5. Step 5: Solve for x
    x = 77,202,341,388.48/318,725.44
  6. Step 6: Final answer
    x = 242,222.09

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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.