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Finding the Fourth Proportional to 307,755.95, 424,774.05 and 180,472.55

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Solution

The fourth proportional to 307,755.95, 424,774.05 and 180,472.55 is: 249,093.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,755.95 : 424,774.05 = 180,472.55 : x
  2. Step 2: Convert to fraction form
    307,755.95/424,774.05 = 180,472.55/x
  3. Step 3: Cross multiply
    307,755.95x = 424,774.05 × 180,472.55
  4. Step 4: Simplify right side
    307,755.95x = 76,660,055,977.33
  5. Step 5: Solve for x
    x = 76,660,055,977.33/307,755.95
  6. Step 6: Final answer
    x = 249,093.66

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.