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Finding the Fourth Proportional to 323,833.40, 485,750.10 and 199,417.40

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Solution

The fourth proportional to 323,833.40, 485,750.10 and 199,417.40 is: 299,126.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,833.40 : 485,750.10 = 199,417.40 : x
  2. Step 2: Convert to fraction form
    323,833.40/485,750.10 = 199,417.40/x
  3. Step 3: Cross multiply
    323,833.40x = 485,750.10 × 199,417.40
  4. Step 4: Simplify right side
    323,833.40x = 96,867,021,991.74
  5. Step 5: Solve for x
    x = 96,867,021,991.74/323,833.40
  6. Step 6: Final answer
    x = 299,126.10

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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.