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Finding the Fourth Proportional to 367,655.90, 551,483.85 and 209,900.30

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Solution

The fourth proportional to 367,655.90, 551,483.85 and 209,900.30 is: 314,850.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    367,655.90 : 551,483.85 = 209,900.30 : x
  2. Step 2: Convert to fraction form
    367,655.90/551,483.85 = 209,900.30/x
  3. Step 3: Cross multiply
    367,655.90x = 551,483.85 × 209,900.30
  4. Step 4: Simplify right side
    367,655.90x = 115,756,625,560.16
  5. Step 5: Solve for x
    x = 115,756,625,560.16/367,655.90
  6. Step 6: Final answer
    x = 314,850.45

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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.