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Finding the Fourth Proportional to 342,657.81, 472,821.30 and 199,307.25

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Solution

The fourth proportional to 342,657.81, 472,821.30 and 199,307.25 is: 275,016.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,657.81 : 472,821.30 = 199,307.25 : x
  2. Step 2: Convert to fraction form
    342,657.81/472,821.30 = 199,307.25/x
  3. Step 3: Cross multiply
    342,657.81x = 472,821.30 × 199,307.25
  4. Step 4: Simplify right side
    342,657.81x = 94,236,713,044.43
  5. Step 5: Solve for x
    x = 94,236,713,044.43/342,657.81
  6. Step 6: Final answer
    x = 275,016.97

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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.