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Finding the Fourth Proportional to 318,673.52, 439,767.06 and 175,436

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Solution

The fourth proportional to 318,673.52, 439,767.06 and 175,436 is: 242,100.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,673.52 : 439,767.06 = 175,436 : x
  2. Step 2: Convert to fraction form
    318,673.52/439,767.06 = 175,436/x
  3. Step 3: Cross multiply
    318,673.52x = 439,767.06 × 175,436
  4. Step 4: Simplify right side
    318,673.52x = 77,150,973,938.16
  5. Step 5: Solve for x
    x = 77,150,973,938.16/318,673.52
  6. Step 6: Final answer
    x = 242,100.36

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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.