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Finding the Fourth Proportional to 243,238.87, 365,024.42 and 85,467.34

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Solution

The fourth proportional to 243,238.87, 365,024.42 and 85,467.34 is: 128,259.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,238.87 : 365,024.42 = 85,467.34 : x
  2. Step 2: Convert to fraction form
    243,238.87/365,024.42 = 85,467.34/x
  3. Step 3: Cross multiply
    243,238.87x = 365,024.42 × 85,467.34
  4. Step 4: Simplify right side
    243,238.87x = 31,197,666,212.44
  5. Step 5: Solve for x
    x = 31,197,666,212.44/243,238.87
  6. Step 6: Final answer
    x = 128,259.38

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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.