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Finding the Fourth Proportional to 247,697.80, 371,473.80 and 70,220.32

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Solution

The fourth proportional to 247,697.80, 371,473.80 and 70,220.32 is: 105,309.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,697.80 : 371,473.80 = 70,220.32 : x
  2. Step 2: Convert to fraction form
    247,697.80/371,473.80 = 70,220.32/x
  3. Step 3: Cross multiply
    247,697.80x = 371,473.80 × 70,220.32
  4. Step 4: Simplify right side
    247,697.80x = 26,085,009,107.62
  5. Step 5: Solve for x
    x = 26,085,009,107.62/247,697.80
  6. Step 6: Final answer
    x = 105,309.81

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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.