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Finding the Fourth Proportional to 359,244.80, 539,450.40 and 201,780.80

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Solution

The fourth proportional to 359,244.80, 539,450.40 and 201,780.80 is: 302,998.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,244.80 : 539,450.40 = 201,780.80 : x
  2. Step 2: Convert to fraction form
    359,244.80/539,450.40 = 201,780.80/x
  3. Step 3: Cross multiply
    359,244.80x = 539,450.40 × 201,780.80
  4. Step 4: Simplify right side
    359,244.80x = 108,850,733,272.32
  5. Step 5: Solve for x
    x = 108,850,733,272.32/359,244.80
  6. Step 6: Final answer
    x = 302,998.77

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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.