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Finding the Fourth Proportional to 220,248.64, 303,990.42 and 134,235.64

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Solution

The fourth proportional to 220,248.64, 303,990.42 and 134,235.64 is: 185,274.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,248.64 : 303,990.42 = 134,235.64 : x
  2. Step 2: Convert to fraction form
    220,248.64/303,990.42 = 134,235.64/x
  3. Step 3: Cross multiply
    220,248.64x = 303,990.42 × 134,235.64
  4. Step 4: Simplify right side
    220,248.64x = 40,806,348,582.57
  5. Step 5: Solve for x
    x = 40,806,348,582.57/220,248.64
  6. Step 6: Final answer
    x = 185,274.01

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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.