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Finding the Fourth Proportional to 247,007.68, 340,870.48 and 133,830.43

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Solution

The fourth proportional to 247,007.68, 340,870.48 and 133,830.43 is: 184,685.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,007.68 : 340,870.48 = 133,830.43 : x
  2. Step 2: Convert to fraction form
    247,007.68/340,870.48 = 133,830.43/x
  3. Step 3: Cross multiply
    247,007.68x = 340,870.48 × 133,830.43
  4. Step 4: Simplify right side
    247,007.68x = 45,618,841,725.95
  5. Step 5: Solve for x
    x = 45,618,841,725.95/247,007.68
  6. Step 6: Final answer
    x = 184,685.93

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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.