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Finding the Fourth Proportional to 299,677.95, 449,515.71 and 142,017.12

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Solution

The fourth proportional to 299,677.95, 449,515.71 and 142,017.12 is: 213,025.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,677.95 : 449,515.71 = 142,017.12 : x
  2. Step 2: Convert to fraction form
    299,677.95/449,515.71 = 142,017.12/x
  3. Step 3: Cross multiply
    299,677.95x = 449,515.71 × 142,017.12
  4. Step 4: Simplify right side
    299,677.95x = 63,838,926,528.96
  5. Step 5: Solve for x
    x = 63,838,926,528.96/299,677.95
  6. Step 6: Final answer
    x = 213,025.10

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1.5x scale

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.