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Finding the Fourth Proportional to 359,860.39, 539,866.70 and 135,222.77

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Solution

The fourth proportional to 359,860.39, 539,866.70 and 135,222.77 is: 202,862.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,860.39 : 539,866.70 = 135,222.77 : x
  2. Step 2: Convert to fraction form
    359,860.39/539,866.70 = 135,222.77/x
  3. Step 3: Cross multiply
    359,860.39x = 539,866.70 × 135,222.77
  4. Step 4: Simplify right side
    359,860.39x = 73,002,270,604.76
  5. Step 5: Solve for x
    x = 73,002,270,604.76/359,860.39
  6. Step 6: Final answer
    x = 202,862.76

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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.