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Finding the Fourth Proportional to 247,411.12, 371,069.52 and 69,875.68

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Solution

The fourth proportional to 247,411.12, 371,069.52 and 69,875.68 is: 104,800.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,411.12 : 371,069.52 = 69,875.68 : x
  2. Step 2: Convert to fraction form
    247,411.12/371,069.52 = 69,875.68/x
  3. Step 3: Cross multiply
    247,411.12x = 371,069.52 × 69,875.68
  4. Step 4: Simplify right side
    247,411.12x = 25,928,735,037.27
  5. Step 5: Solve for x
    x = 25,928,735,037.27/247,411.12
  6. Step 6: Final answer
    x = 104,800.20

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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.