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Finding the Fourth Proportional to 342,576.66, 472,743.73 and 189,615.15

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Solution

The fourth proportional to 342,576.66, 472,743.73 and 189,615.15 is: 261,662.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,576.66 : 472,743.73 = 189,615.15 : x
  2. Step 2: Convert to fraction form
    342,576.66/472,743.73 = 189,615.15/x
  3. Step 3: Cross multiply
    342,576.66x = 472,743.73 × 189,615.15
  4. Step 4: Simplify right side
    342,576.66x = 89,639,373,275.51
  5. Step 5: Solve for x
    x = 89,639,373,275.51/342,576.66
  6. Step 6: Final answer
    x = 261,662.23

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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.