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Finding the Fourth Proportional to 367,364.18, 550,308.15 and 209,408.10

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Solution

The fourth proportional to 367,364.18, 550,308.15 and 209,408.10 is: 313,691.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    367,364.18 : 550,308.15 = 209,408.10 : x
  2. Step 2: Convert to fraction form
    367,364.18/550,308.15 = 209,408.10/x
  3. Step 3: Cross multiply
    367,364.18x = 550,308.15 × 209,408.10
  4. Step 4: Simplify right side
    367,364.18x = 115,238,984,106.02
  5. Step 5: Solve for x
    x = 115,238,984,106.02/367,364.18
  6. Step 6: Final answer
    x = 313,691.40

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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.