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Finding the Fourth Proportional to 342,570.57, 472,748.31 and 189,619.29

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Solution

The fourth proportional to 342,570.57, 472,748.31 and 189,619.29 is: 261,675.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,570.57 : 472,748.31 = 189,619.29 : x
  2. Step 2: Convert to fraction form
    342,570.57/472,748.31 = 189,619.29/x
  3. Step 3: Cross multiply
    342,570.57x = 472,748.31 × 189,619.29
  4. Step 4: Simplify right side
    342,570.57x = 89,642,198,890.90
  5. Step 5: Solve for x
    x = 89,642,198,890.90/342,570.57
  6. Step 6: Final answer
    x = 261,675.13

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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.