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Finding the Fourth Proportional to 248,143.80, 342,435.88 and 134,966.52

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Solution

The fourth proportional to 248,143.80, 342,435.88 and 134,966.52 is: 186,252.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,143.80 : 342,435.88 = 134,966.52 : x
  2. Step 2: Convert to fraction form
    248,143.80/342,435.88 = 134,966.52/x
  3. Step 3: Cross multiply
    248,143.80x = 342,435.88 × 134,966.52
  4. Step 4: Simplify right side
    248,143.80x = 46,217,379,046.74
  5. Step 5: Solve for x
    x = 46,217,379,046.74/248,143.80
  6. Step 6: Final answer
    x = 186,252.40

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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.