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Finding the Fourth Proportional to 359,939.20, 539,908.80 and 160,259.20

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Solution

The fourth proportional to 359,939.20, 539,908.80 and 160,259.20 is: 240,388.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,939.20 : 539,908.80 = 160,259.20 : x
  2. Step 2: Convert to fraction form
    359,939.20/539,908.80 = 160,259.20/x
  3. Step 3: Cross multiply
    359,939.20x = 539,908.80 × 160,259.20
  4. Step 4: Simplify right side
    359,939.20x = 86,525,352,360.96
  5. Step 5: Solve for x
    x = 86,525,352,360.96/359,939.20
  6. Step 6: Final answer
    x = 240,388.80

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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.