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Finding the Fourth Proportional to 318,306, 439,265.92 and 175,068.40

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Solution

The fourth proportional to 318,306, 439,265.92 and 175,068.40 is: 241,596.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,306 : 439,265.92 = 175,068.40 : x
  2. Step 2: Convert to fraction form
    318,306/439,265.92 = 175,068.40/x
  3. Step 3: Cross multiply
    318,306x = 439,265.92 × 175,068.40
  4. Step 4: Simplify right side
    318,306x = 76,901,581,788.93
  5. Step 5: Solve for x
    x = 76,901,581,788.93/318,306
  6. Step 6: Final answer
    x = 241,596.39

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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.