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Finding the Fourth Proportional to 215,762.48, 323,753.04 and 143,764.60

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Solution

The fourth proportional to 215,762.48, 323,753.04 and 143,764.60 is: 215,719.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,762.48 : 323,753.04 = 143,764.60 : x
  2. Step 2: Convert to fraction form
    215,762.48/323,753.04 = 143,764.60/x
  3. Step 3: Cross multiply
    215,762.48x = 323,753.04 × 143,764.60
  4. Step 4: Simplify right side
    215,762.48x = 46,544,225,575.56
  5. Step 5: Solve for x
    x = 46,544,225,575.56/215,762.48
  6. Step 6: Final answer
    x = 215,719.74

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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.