Home / 220,232.60-303,915.89-128,346.03

Finding the Fourth Proportional to 220,232.60, 303,915.89 and 128,346.03

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Solution

The fourth proportional to 220,232.60, 303,915.89 and 128,346.03 is: 177,114.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,232.60 : 303,915.89 = 128,346.03 : x
  2. Step 2: Convert to fraction form
    220,232.60/303,915.89 = 128,346.03/x
  3. Step 3: Cross multiply
    220,232.60x = 303,915.89 × 128,346.03
  4. Step 4: Simplify right side
    220,232.60x = 39,006,397,293.69
  5. Step 5: Solve for x
    x = 39,006,397,293.69/220,232.60
  6. Step 6: Final answer
    x = 177,114.55

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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.