Home / 220,220.34-303,925.28-123,423.72

Finding the Fourth Proportional to 220,220.34, 303,925.28 and 123,423.72

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Solution

The fourth proportional to 220,220.34, 303,925.28 and 123,423.72 is: 170,336.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,220.34 : 303,925.28 = 123,423.72 : x
  2. Step 2: Convert to fraction form
    220,220.34/303,925.28 = 123,423.72/x
  3. Step 3: Cross multiply
    220,220.34x = 303,925.28 × 123,423.72
  4. Step 4: Simplify right side
    220,220.34x = 37,511,588,659.64
  5. Step 5: Solve for x
    x = 37,511,588,659.64/220,220.34
  6. Step 6: Final answer
    x = 170,336.62

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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.