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Finding the Fourth Proportional to 359,850.80, 538,912.20 and 193,271.60

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Solution

The fourth proportional to 359,850.80, 538,912.20 and 193,271.60 is: 289,443.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,850.80 : 538,912.20 = 193,271.60 : x
  2. Step 2: Convert to fraction form
    359,850.80/538,912.20 = 193,271.60/x
  3. Step 3: Cross multiply
    359,850.80x = 538,912.20 × 193,271.60
  4. Step 4: Simplify right side
    359,850.80x = 104,156,423,153.52
  5. Step 5: Solve for x
    x = 104,156,423,153.52/359,850.80
  6. Step 6: Final answer
    x = 289,443.36

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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.