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Finding the Fourth Proportional to 247,864, 342,051.63 and 134,686.72

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Solution

The fourth proportional to 247,864, 342,051.63 and 134,686.72 is: 185,867.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,864 : 342,051.63 = 134,686.72 : x
  2. Step 2: Convert to fraction form
    247,864/342,051.63 = 134,686.72/x
  3. Step 3: Cross multiply
    247,864x = 342,051.63 × 134,686.72
  4. Step 4: Simplify right side
    247,864x = 46,069,812,115.35
  5. Step 5: Solve for x
    x = 46,069,812,115.35/247,864
  6. Step 6: Final answer
    x = 185,867.30

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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.