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Finding the Fourth Proportional to 315,561.33, 472,991.31 and 240,433.74

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Solution

The fourth proportional to 315,561.33, 472,991.31 and 240,433.74 is: 360,383.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,561.33 : 472,991.31 = 240,433.74 : x
  2. Step 2: Convert to fraction form
    315,561.33/472,991.31 = 240,433.74/x
  3. Step 3: Cross multiply
    315,561.33x = 472,991.31 × 240,433.74
  4. Step 4: Simplify right side
    315,561.33x = 113,723,069,650.80
  5. Step 5: Solve for x
    x = 113,723,069,650.80/315,561.33
  6. Step 6: Final answer
    x = 360,383.41

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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.