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Finding the Fourth Proportional to 247,210.10, 370,815.15 and 80,998.10

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Solution

The fourth proportional to 247,210.10, 370,815.15 and 80,998.10 is: 121,497.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,210.10 : 370,815.15 = 80,998.10 : x
  2. Step 2: Convert to fraction form
    247,210.10/370,815.15 = 80,998.10/x
  3. Step 3: Cross multiply
    247,210.10x = 370,815.15 × 80,998.10
  4. Step 4: Simplify right side
    247,210.10x = 30,035,322,601.22
  5. Step 5: Solve for x
    x = 30,035,322,601.22/247,210.10
  6. Step 6: Final answer
    x = 121,497.15

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1.5x scale

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.