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Finding the Fourth Proportional to 247,705.60, 371,576.62 and 76,904.94

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Solution

The fourth proportional to 247,705.60, 371,576.62 and 76,904.94 is: 115,363.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,705.60 : 371,576.62 = 76,904.94 : x
  2. Step 2: Convert to fraction form
    247,705.60/371,576.62 = 76,904.94/x
  3. Step 3: Cross multiply
    247,705.60x = 371,576.62 × 76,904.94
  4. Step 4: Simplify right side
    247,705.60x = 28,576,077,666.50
  5. Step 5: Solve for x
    x = 28,576,077,666.50/247,705.60
  6. Step 6: Final answer
    x = 115,363.07

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.