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Finding the Fourth Proportional to 247,903.47, 342,097.16 and 134,723.79

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Solution

The fourth proportional to 247,903.47, 342,097.16 and 134,723.79 is: 185,913.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,903.47 : 342,097.16 = 134,723.79 : x
  2. Step 2: Convert to fraction form
    247,903.47/342,097.16 = 134,723.79/x
  3. Step 3: Cross multiply
    247,903.47x = 342,097.16 × 134,723.79
  4. Step 4: Simplify right side
    247,903.47x = 46,088,625,269.82
  5. Step 5: Solve for x
    x = 46,088,625,269.82/247,903.47
  6. Step 6: Final answer
    x = 185,913.59

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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.