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Finding the Fourth Proportional to 218,834.76, 301,992 and 118,232.76

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Solution

The fourth proportional to 218,834.76, 301,992 and 118,232.76 is: 163,161.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,834.76 : 301,992 = 118,232.76 : x
  2. Step 2: Convert to fraction form
    218,834.76/301,992 = 118,232.76/x
  3. Step 3: Cross multiply
    218,834.76x = 301,992 × 118,232.76
  4. Step 4: Simplify right side
    218,834.76x = 35,705,347,657.92
  5. Step 5: Solve for x
    x = 35,705,347,657.92/218,834.76
  6. Step 6: Final answer
    x = 163,161.23

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.