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Finding the Fourth Proportional to 342,564.72, 472,699.86 and 197,391.66

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Solution

The fourth proportional to 342,564.72, 472,699.86 and 197,391.66 is: 272,377.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,564.72 : 472,699.86 = 197,391.66 : x
  2. Step 2: Convert to fraction form
    342,564.72/472,699.86 = 197,391.66/x
  3. Step 3: Cross multiply
    342,564.72x = 472,699.86 × 197,391.66
  4. Step 4: Simplify right side
    342,564.72x = 93,307,010,047.17
  5. Step 5: Solve for x
    x = 93,307,010,047.17/342,564.72
  6. Step 6: Final answer
    x = 272,377.76

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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.