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Finding the Fourth Proportional to 299,281.95, 448,977.60 and 121,806.90

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Solution

The fourth proportional to 299,281.95, 448,977.60 and 121,806.90 is: 182,732.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,281.95 : 448,977.60 = 121,806.90 : x
  2. Step 2: Convert to fraction form
    299,281.95/448,977.60 = 121,806.90/x
  3. Step 3: Cross multiply
    299,281.95x = 448,977.60 × 121,806.90
  4. Step 4: Simplify right side
    299,281.95x = 54,688,569,625.44
  5. Step 5: Solve for x
    x = 54,688,569,625.44/299,281.95
  6. Step 6: Final answer
    x = 182,732.60

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.