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Finding the Fourth Proportional to 247,876.86, 342,072.15 and 134,699.58

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Solution

The fourth proportional to 247,876.86, 342,072.15 and 134,699.58 is: 185,886.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,876.86 : 342,072.15 = 134,699.58 : x
  2. Step 2: Convert to fraction form
    247,876.86/342,072.15 = 134,699.58/x
  3. Step 3: Cross multiply
    247,876.86x = 342,072.15 × 134,699.58
  4. Step 4: Simplify right side
    247,876.86x = 46,076,974,934.70
  5. Step 5: Solve for x
    x = 46,076,974,934.70/247,876.86
  6. Step 6: Final answer
    x = 185,886.55

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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.