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Finding the Fourth Proportional to 315,004.80, 472,507.20 and 173,287.20

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Solution

The fourth proportional to 315,004.80, 472,507.20 and 173,287.20 is: 259,930.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,004.80 : 472,507.20 = 173,287.20 : x
  2. Step 2: Convert to fraction form
    315,004.80/472,507.20 = 173,287.20/x
  3. Step 3: Cross multiply
    315,004.80x = 472,507.20 × 173,287.20
  4. Step 4: Simplify right side
    315,004.80x = 81,879,449,667.84
  5. Step 5: Solve for x
    x = 81,879,449,667.84/315,004.80
  6. Step 6: Final answer
    x = 259,930.80

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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.