Home / 328,131.79-492,200.11-117,771.55

Finding the Fourth Proportional to 328,131.79, 492,200.11 and 117,771.55

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Solution

The fourth proportional to 328,131.79, 492,200.11 and 117,771.55 is: 176,658.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,131.79 : 492,200.11 = 117,771.55 : x
  2. Step 2: Convert to fraction form
    328,131.79/492,200.11 = 117,771.55/x
  3. Step 3: Cross multiply
    328,131.79x = 492,200.11 × 117,771.55
  4. Step 4: Simplify right side
    328,131.79x = 57,967,169,864.87
  5. Step 5: Solve for x
    x = 57,967,169,864.87/328,131.79
  6. Step 6: Final answer
    x = 176,658.20

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1.5x scale

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.