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Finding the Fourth Proportional to 262,909.41, 394,430.64 and 73,369.76

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Solution

The fourth proportional to 262,909.41, 394,430.64 and 73,369.76 is: 110,073.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,909.41 : 394,430.64 = 73,369.76 : x
  2. Step 2: Convert to fraction form
    262,909.41/394,430.64 = 73,369.76/x
  3. Step 3: Cross multiply
    262,909.41x = 394,430.64 × 73,369.76
  4. Step 4: Simplify right side
    262,909.41x = 28,939,281,393.45
  5. Step 5: Solve for x
    x = 28,939,281,393.45/262,909.41
  6. Step 6: Final answer
    x = 110,073.21

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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.