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Finding the Fourth Proportional to 342,963.40, 473,131.92 and 222,145

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Solution

The fourth proportional to 342,963.40, 473,131.92 and 222,145 is: 306,458.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,963.40 : 473,131.92 = 222,145 : x
  2. Step 2: Convert to fraction form
    342,963.40/473,131.92 = 222,145/x
  3. Step 3: Cross multiply
    342,963.40x = 473,131.92 × 222,145
  4. Step 4: Simplify right side
    342,963.40x = 105,103,890,368.40
  5. Step 5: Solve for x
    x = 105,103,890,368.40/342,963.40
  6. Step 6: Final answer
    x = 306,458.04

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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.