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Finding the Fourth Proportional to 318,359.76, 439,333.32 and 175,122

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Solution

The fourth proportional to 318,359.76, 439,333.32 and 175,122 is: 241,666.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,359.76 : 439,333.32 = 175,122 : x
  2. Step 2: Convert to fraction form
    318,359.76/439,333.32 = 175,122/x
  3. Step 3: Cross multiply
    318,359.76x = 439,333.32 × 175,122
  4. Step 4: Simplify right side
    318,359.76x = 76,936,929,665.04
  5. Step 5: Solve for x
    x = 76,936,929,665.04/318,359.76
  6. Step 6: Final answer
    x = 241,666.63

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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.