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Finding the Fourth Proportional to 218,232.01, 301,136.70 and 122,718.43

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Solution

The fourth proportional to 218,232.01, 301,136.70 and 122,718.43 is: 169,338.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,232.01 : 301,136.70 = 122,718.43 : x
  2. Step 2: Convert to fraction form
    218,232.01/301,136.70 = 122,718.43/x
  3. Step 3: Cross multiply
    218,232.01x = 301,136.70 × 122,718.43
  4. Step 4: Simplify right side
    218,232.01x = 36,955,023,039.38
  5. Step 5: Solve for x
    x = 36,955,023,039.38/218,232.01
  6. Step 6: Final answer
    x = 169,338.23

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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.