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Finding the Fourth Proportional to 248,324.85, 342,689.82 and 135,148.77

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Solution

The fourth proportional to 248,324.85, 342,689.82 and 135,148.77 is: 186,506.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,324.85 : 342,689.82 = 135,148.77 : x
  2. Step 2: Convert to fraction form
    248,324.85/342,689.82 = 135,148.77/x
  3. Step 3: Cross multiply
    248,324.85x = 342,689.82 × 135,148.77
  4. Step 4: Simplify right side
    248,324.85x = 46,314,107,664.52
  5. Step 5: Solve for x
    x = 46,314,107,664.52/248,324.85
  6. Step 6: Final answer
    x = 186,506.13

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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.