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Finding the Fourth Proportional to 366,938.90, 550,408.35 and 307,889.90

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Solution

The fourth proportional to 366,938.90, 550,408.35 and 307,889.90 is: 461,834.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,938.90 : 550,408.35 = 307,889.90 : x
  2. Step 2: Convert to fraction form
    366,938.90/550,408.35 = 307,889.90/x
  3. Step 3: Cross multiply
    366,938.90x = 550,408.35 × 307,889.90
  4. Step 4: Simplify right side
    366,938.90x = 169,465,171,840.67
  5. Step 5: Solve for x
    x = 169,465,171,840.67/366,938.90
  6. Step 6: Final answer
    x = 461,834.85

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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.