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Finding the Fourth Proportional to 373,385.82, 515,258.70 and 203,616.30

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Solution

The fourth proportional to 373,385.82, 515,258.70 and 203,616.30 is: 280,983.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,385.82 : 515,258.70 = 203,616.30 : x
  2. Step 2: Convert to fraction form
    373,385.82/515,258.70 = 203,616.30/x
  3. Step 3: Cross multiply
    373,385.82x = 515,258.70 × 203,616.30
  4. Step 4: Simplify right side
    373,385.82x = 104,915,070,036.81
  5. Step 5: Solve for x
    x = 104,915,070,036.81/373,385.82
  6. Step 6: Final answer
    x = 280,983.01

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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.