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Finding the Fourth Proportional to 220,232.32, 303,912 and 124,744.32

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Solution

The fourth proportional to 220,232.32, 303,912 and 124,744.32 is: 172,142.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,232.32 : 303,912 = 124,744.32 : x
  2. Step 2: Convert to fraction form
    220,232.32/303,912 = 124,744.32/x
  3. Step 3: Cross multiply
    220,232.32x = 303,912 × 124,744.32
  4. Step 4: Simplify right side
    220,232.32x = 37,911,295,779.84
  5. Step 5: Solve for x
    x = 37,911,295,779.84/220,232.32
  6. Step 6: Final answer
    x = 172,142.29

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.