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Finding the Fourth Proportional to 247,991.46, 371,931.30 and 70,494.54

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Solution

The fourth proportional to 247,991.46, 371,931.30 and 70,494.54 is: 105,725.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,991.46 : 371,931.30 = 70,494.54 : x
  2. Step 2: Convert to fraction form
    247,991.46/371,931.30 = 70,494.54/x
  3. Step 3: Cross multiply
    247,991.46x = 371,931.30 × 70,494.54
  4. Step 4: Simplify right side
    247,991.46x = 26,219,125,905.10
  5. Step 5: Solve for x
    x = 26,219,125,905.10/247,991.46
  6. Step 6: Final answer
    x = 105,725.92

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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.