Home / 218,428.57-301,441.13-122,941.45

Finding the Fourth Proportional to 218,428.57, 301,441.13 and 122,941.45

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Solution

The fourth proportional to 218,428.57, 301,441.13 and 122,941.45 is: 169,664.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,428.57 : 301,441.13 = 122,941.45 : x
  2. Step 2: Convert to fraction form
    218,428.57/301,441.13 = 122,941.45/x
  3. Step 3: Cross multiply
    218,428.57x = 301,441.13 × 122,941.45
  4. Step 4: Simplify right side
    218,428.57x = 37,059,609,611.84
  5. Step 5: Solve for x
    x = 37,059,609,611.84/218,428.57
  6. Step 6: Final answer
    x = 169,664.66

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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.