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Finding the Fourth Proportional to 359,910.20, 540,192.47 and 191,571.34

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Solution

The fourth proportional to 359,910.20, 540,192.47 and 191,571.34 is: 287,531.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,910.20 : 540,192.47 = 191,571.34 : x
  2. Step 2: Convert to fraction form
    359,910.20/540,192.47 = 191,571.34/x
  3. Step 3: Cross multiply
    359,910.20x = 540,192.47 × 191,571.34
  4. Step 4: Simplify right side
    359,910.20x = 103,485,395,335.81
  5. Step 5: Solve for x
    x = 103,485,395,335.81/359,910.20
  6. Step 6: Final answer
    x = 287,531.15

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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.