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Finding the Fourth Proportional to 318,502.76, 477,823.26 and 96,881

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Solution

The fourth proportional to 318,502.76, 477,823.26 and 96,881 is: 145,342.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,502.76 : 477,823.26 = 96,881 : x
  2. Step 2: Convert to fraction form
    318,502.76/477,823.26 = 96,881/x
  3. Step 3: Cross multiply
    318,502.76x = 477,823.26 × 96,881
  4. Step 4: Simplify right side
    318,502.76x = 46,291,995,252.06
  5. Step 5: Solve for x
    x = 46,291,995,252.06/318,502.76
  6. Step 6: Final answer
    x = 145,342.52

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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.