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Finding the Fourth Proportional to 342,989.32, 473,239.76 and 197,839.48

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Solution

The fourth proportional to 342,989.32, 473,239.76 and 197,839.48 is: 272,969.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,989.32 : 473,239.76 = 197,839.48 : x
  2. Step 2: Convert to fraction form
    342,989.32/473,239.76 = 197,839.48/x
  3. Step 3: Cross multiply
    342,989.32x = 473,239.76 × 197,839.48
  4. Step 4: Simplify right side
    342,989.32x = 93,625,508,033.72
  5. Step 5: Solve for x
    x = 93,625,508,033.72/342,989.32
  6. Step 6: Final answer
    x = 272,969.16

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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.