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Finding the Fourth Proportional to 218,339.28, 301,291.98 and 122,827.56

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Solution

The fourth proportional to 218,339.28, 301,291.98 and 122,827.56 is: 169,492.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,339.28 : 301,291.98 = 122,827.56 : x
  2. Step 2: Convert to fraction form
    218,339.28/301,291.98 = 122,827.56/x
  3. Step 3: Cross multiply
    218,339.28x = 301,291.98 × 122,827.56
  4. Step 4: Simplify right side
    218,339.28x = 37,006,958,750.97
  5. Step 5: Solve for x
    x = 37,006,958,750.97/218,339.28
  6. Step 6: Final answer
    x = 169,492.90

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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.