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Finding the Fourth Proportional to 247,898.47, 342,103.58 and 134,721.31

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Solution

The fourth proportional to 247,898.47, 342,103.58 and 134,721.31 is: 185,917.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,898.47 : 342,103.58 = 134,721.31 : x
  2. Step 2: Convert to fraction form
    247,898.47/342,103.58 = 134,721.31/x
  3. Step 3: Cross multiply
    247,898.47x = 342,103.58 × 134,721.31
  4. Step 4: Simplify right side
    247,898.47x = 46,088,641,779.68
  5. Step 5: Solve for x
    x = 46,088,641,779.68/247,898.47
  6. Step 6: Final answer
    x = 185,917.41

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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.