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Finding the Fourth Proportional to 203,520.92, 305,327.88 and 70,401.08

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Solution

The fourth proportional to 203,520.92, 305,327.88 and 70,401.08 is: 105,617.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,520.92 : 305,327.88 = 70,401.08 : x
  2. Step 2: Convert to fraction form
    203,520.92/305,327.88 = 70,401.08/x
  3. Step 3: Cross multiply
    203,520.92x = 305,327.88 × 70,401.08
  4. Step 4: Simplify right side
    203,520.92x = 21,495,412,506.11
  5. Step 5: Solve for x
    x = 21,495,412,506.11/203,520.92
  6. Step 6: Final answer
    x = 105,617.71

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.