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Finding the Fourth Proportional to 218,769.50, 301,902.03 and 118,167.50

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Solution

The fourth proportional to 218,769.50, 301,902.03 and 118,167.50 is: 163,071.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,769.50 : 301,902.03 = 118,167.50 : x
  2. Step 2: Convert to fraction form
    218,769.50/301,902.03 = 118,167.50/x
  3. Step 3: Cross multiply
    218,769.50x = 301,902.03 × 118,167.50
  4. Step 4: Simplify right side
    218,769.50x = 35,675,008,130.03
  5. Step 5: Solve for x
    x = 35,675,008,130.03/218,769.50
  6. Step 6: Final answer
    x = 163,071.21

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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.