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Finding the Fourth Proportional to 500,540.15, 750,803.90 and 121,464

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Solution

The fourth proportional to 500,540.15, 750,803.90 and 121,464 is: 182,194.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    500,540.15 : 750,803.90 = 121,464 : x
  2. Step 2: Convert to fraction form
    500,540.15/750,803.90 = 121,464/x
  3. Step 3: Cross multiply
    500,540.15x = 750,803.90 × 121,464
  4. Step 4: Simplify right side
    500,540.15x = 91,195,644,302.28
  5. Step 5: Solve for x
    x = 91,195,644,302.28/500,540.15
  6. Step 6: Final answer
    x = 182,194.46

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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.