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Finding the Fourth Proportional to 359,272.80, 539,492.40 and 201,808.80

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Solution

The fourth proportional to 359,272.80, 539,492.40 and 201,808.80 is: 303,040.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,272.80 : 539,492.40 = 201,808.80 : x
  2. Step 2: Convert to fraction form
    359,272.80/539,492.40 = 201,808.80/x
  3. Step 3: Cross multiply
    359,272.80x = 539,492.40 × 201,808.80
  4. Step 4: Simplify right side
    359,272.80x = 108,874,313,853.12
  5. Step 5: Solve for x
    x = 108,874,313,853.12/359,272.80
  6. Step 6: Final answer
    x = 303,040.79

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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.