Home / 328,130.79-492,198.61-117,770.55

Finding the Fourth Proportional to 328,130.79, 492,198.61 and 117,770.55

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Solution

The fourth proportional to 328,130.79, 492,198.61 and 117,770.55 is: 176,656.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,130.79 : 492,198.61 = 117,770.55 : x
  2. Step 2: Convert to fraction form
    328,130.79/492,198.61 = 117,770.55/x
  3. Step 3: Cross multiply
    328,130.79x = 492,198.61 × 117,770.55
  4. Step 4: Simplify right side
    328,130.79x = 57,966,501,008.94
  5. Step 5: Solve for x
    x = 57,966,501,008.94/328,130.79
  6. Step 6: Final answer
    x = 176,656.70

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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.