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Finding the Fourth Proportional to 218,716.76, 301,829.12 and 118,114.76

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Solution

The fourth proportional to 218,716.76, 301,829.12 and 118,114.76 is: 162,998.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,716.76 : 301,829.12 = 118,114.76 : x
  2. Step 2: Convert to fraction form
    218,716.76/301,829.12 = 118,114.76/x
  3. Step 3: Cross multiply
    218,716.76x = 301,829.12 × 118,114.76
  4. Step 4: Simplify right side
    218,716.76x = 35,650,474,069.81
  5. Step 5: Solve for x
    x = 35,650,474,069.81/218,716.76
  6. Step 6: Final answer
    x = 162,998.36

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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.