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Finding the Fourth Proportional to 230,259.77, 315,456.99 and 221,630.69

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Solution

The fourth proportional to 230,259.77, 315,456.99 and 221,630.69 is: 303,635.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,259.77 : 315,456.99 = 221,630.69 : x
  2. Step 2: Convert to fraction form
    230,259.77/315,456.99 = 221,630.69/x
  3. Step 3: Cross multiply
    230,259.77x = 315,456.99 × 221,630.69
  4. Step 4: Simplify right side
    230,259.77x = 69,914,949,250.87
  5. Step 5: Solve for x
    x = 69,914,949,250.87/230,259.77
  6. Step 6: Final answer
    x = 303,635.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.