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Finding the Fourth Proportional to 313,894.78, 433,179.52 and 170,654.50

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Solution

The fourth proportional to 313,894.78, 433,179.52 and 170,654.50 is: 235,505.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,894.78 : 433,179.52 = 170,654.50 : x
  2. Step 2: Convert to fraction form
    313,894.78/433,179.52 = 170,654.50/x
  3. Step 3: Cross multiply
    313,894.78x = 433,179.52 × 170,654.50
  4. Step 4: Simplify right side
    313,894.78x = 73,924,034,395.84
  5. Step 5: Solve for x
    x = 73,924,034,395.84/313,894.78
  6. Step 6: Final answer
    x = 235,505.78

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1.5x scale

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.