Home / 328,129.79-492,197.11-117,769.55

Finding the Fourth Proportional to 328,129.79, 492,197.11 and 117,769.55

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Solution

The fourth proportional to 328,129.79, 492,197.11 and 117,769.55 is: 176,655.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,129.79 : 492,197.11 = 117,769.55 : x
  2. Step 2: Convert to fraction form
    328,129.79/492,197.11 = 117,769.55/x
  3. Step 3: Cross multiply
    328,129.79x = 492,197.11 × 117,769.55
  4. Step 4: Simplify right side
    328,129.79x = 57,965,829,400.59
  5. Step 5: Solve for x
    x = 57,965,829,400.59/328,129.79
  6. Step 6: Final answer
    x = 176,655.19

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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.