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Finding the Fourth Proportional to 218,280.52, 301,225.14 and 122,787.94

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Solution

The fourth proportional to 218,280.52, 301,225.14 and 122,787.94 is: 169,446.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,280.52 : 301,225.14 = 122,787.94 : x
  2. Step 2: Convert to fraction form
    218,280.52/301,225.14 = 122,787.94/x
  3. Step 3: Cross multiply
    218,280.52x = 301,225.14 × 122,787.94
  4. Step 4: Simplify right side
    218,280.52x = 36,986,814,416.81
  5. Step 5: Solve for x
    x = 36,986,814,416.81/218,280.52
  6. Step 6: Final answer
    x = 169,446.24

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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.