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Finding the Fourth Proportional to 199,372.80, 299,059.20 and 181,401.60

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Solution

The fourth proportional to 199,372.80, 299,059.20 and 181,401.60 is: 272,102.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,372.80 : 299,059.20 = 181,401.60 : x
  2. Step 2: Convert to fraction form
    199,372.80/299,059.20 = 181,401.60/x
  3. Step 3: Cross multiply
    199,372.80x = 299,059.20 × 181,401.60
  4. Step 4: Simplify right side
    199,372.80x = 54,249,817,374.72
  5. Step 5: Solve for x
    x = 54,249,817,374.72/199,372.80
  6. Step 6: Final answer
    x = 272,102.40

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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.