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Finding the Fourth Proportional to 359,240.40, 538,860.60 and 270,010.80

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Solution

The fourth proportional to 359,240.40, 538,860.60 and 270,010.80 is: 405,016.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,240.40 : 538,860.60 = 270,010.80 : x
  2. Step 2: Convert to fraction form
    359,240.40/538,860.60 = 270,010.80/x
  3. Step 3: Cross multiply
    359,240.40x = 538,860.60 × 270,010.80
  4. Step 4: Simplify right side
    359,240.40x = 145,498,181,694.48
  5. Step 5: Solve for x
    x = 145,498,181,694.48/359,240.40
  6. Step 6: Final answer
    x = 405,016.20

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1.5x scale

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.