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Finding the Fourth Proportional to 164,350.80, 246,331.80 and 85,424.40

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Solution

The fourth proportional to 164,350.80, 246,331.80 and 85,424.40 is: 128,035.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    164,350.80 : 246,331.80 = 85,424.40 : x
  2. Step 2: Convert to fraction form
    164,350.80/246,331.80 = 85,424.40/x
  3. Step 3: Cross multiply
    164,350.80x = 246,331.80 × 85,424.40
  4. Step 4: Simplify right side
    164,350.80x = 21,042,746,215.92
  5. Step 5: Solve for x
    x = 21,042,746,215.92/164,350.80
  6. Step 6: Final answer
    x = 128,035.56

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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.