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Finding the Fourth Proportional to 318,430.37, 477,760.38 and 160,539.92

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Solution

The fourth proportional to 318,430.37, 477,760.38 and 160,539.92 is: 240,867.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,430.37 : 477,760.38 = 160,539.92 : x
  2. Step 2: Convert to fraction form
    318,430.37/477,760.38 = 160,539.92/x
  3. Step 3: Cross multiply
    318,430.37x = 477,760.38 × 160,539.92
  4. Step 4: Simplify right side
    318,430.37x = 76,699,613,184.37
  5. Step 5: Solve for x
    x = 76,699,613,184.37/318,430.37
  6. Step 6: Final answer
    x = 240,867.77

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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.