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Finding the Fourth Proportional to 359,992.40, 539,729.40 and 202,269.20

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Solution

The fourth proportional to 359,992.40, 539,729.40 and 202,269.20 is: 303,258.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,992.40 : 539,729.40 = 202,269.20 : x
  2. Step 2: Convert to fraction form
    359,992.40/539,729.40 = 202,269.20/x
  3. Step 3: Cross multiply
    359,992.40x = 539,729.40 × 202,269.20
  4. Step 4: Simplify right side
    359,992.40x = 109,170,633,954.48
  5. Step 5: Solve for x
    x = 109,170,633,954.48/359,992.40
  6. Step 6: Final answer
    x = 303,258.16

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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.