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Finding the Fourth Proportional to 360,242.43, 540,362.92 and 338,320.49

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Solution

The fourth proportional to 360,242.43, 540,362.92 and 338,320.49 is: 507,480.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    360,242.43 : 540,362.92 = 338,320.49 : x
  2. Step 2: Convert to fraction form
    360,242.43/540,362.92 = 338,320.49/x
  3. Step 3: Cross multiply
    360,242.43x = 540,362.92 × 338,320.49
  4. Step 4: Simplify right side
    360,242.43x = 182,815,847,872.23
  5. Step 5: Solve for x
    x = 182,815,847,872.23/360,242.43
  6. Step 6: Final answer
    x = 507,480.05

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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.