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Finding the Fourth Proportional to 342,272.78, 513,299.99 and 117,579.04

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Solution

The fourth proportional to 342,272.78, 513,299.99 and 117,579.04 is: 176,331.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,272.78 : 513,299.99 = 117,579.04 : x
  2. Step 2: Convert to fraction form
    342,272.78/513,299.99 = 117,579.04/x
  3. Step 3: Cross multiply
    342,272.78x = 513,299.99 × 117,579.04
  4. Step 4: Simplify right side
    342,272.78x = 60,353,318,185.06
  5. Step 5: Solve for x
    x = 60,353,318,185.06/342,272.78
  6. Step 6: Final answer
    x = 176,331.05

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.