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Finding the Fourth Proportional to 350,451.11, 525,720.41 and 137,191.47

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Solution

The fourth proportional to 350,451.11, 525,720.41 and 137,191.47 is: 205,804.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    350,451.11 : 525,720.41 = 137,191.47 : x
  2. Step 2: Convert to fraction form
    350,451.11/525,720.41 = 137,191.47/x
  3. Step 3: Cross multiply
    350,451.11x = 525,720.41 × 137,191.47
  4. Step 4: Simplify right side
    350,451.11x = 72,124,355,170.95
  5. Step 5: Solve for x
    x = 72,124,355,170.95/350,451.11
  6. Step 6: Final answer
    x = 205,804.33

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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.