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Finding the Fourth Proportional to 359,392.40, 539,477.40 and 226,422.80

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Solution

The fourth proportional to 359,392.40, 539,477.40 and 226,422.80 is: 339,879.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,392.40 : 539,477.40 = 226,422.80 : x
  2. Step 2: Convert to fraction form
    359,392.40/539,477.40 = 226,422.80/x
  3. Step 3: Cross multiply
    359,392.40x = 539,477.40 × 226,422.80
  4. Step 4: Simplify right side
    359,392.40x = 122,149,983,444.72
  5. Step 5: Solve for x
    x = 122,149,983,444.72/359,392.40
  6. Step 6: Final answer
    x = 339,879.15

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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.