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Finding the Fourth Proportional to 243,237.87, 365,022.92 and 85,466.34

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Solution

The fourth proportional to 243,237.87, 365,022.92 and 85,466.34 is: 128,257.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,237.87 : 365,022.92 = 85,466.34 : x
  2. Step 2: Convert to fraction form
    243,237.87/365,022.92 = 85,466.34/x
  3. Step 3: Cross multiply
    243,237.87x = 365,022.92 × 85,466.34
  4. Step 4: Simplify right side
    243,237.87x = 31,197,173,202.18
  5. Step 5: Solve for x
    x = 31,197,173,202.18/243,237.87
  6. Step 6: Final answer
    x = 128,257.88

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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.