Home / 315,171.45-472,761.09-104,809.32

Finding the Fourth Proportional to 315,171.45, 472,761.09 and 104,809.32

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Solution

The fourth proportional to 315,171.45, 472,761.09 and 104,809.32 is: 157,215.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,171.45 : 472,761.09 = 104,809.32 : x
  2. Step 2: Convert to fraction form
    315,171.45/472,761.09 = 104,809.32/x
  3. Step 3: Cross multiply
    315,171.45x = 472,761.09 × 104,809.32
  4. Step 4: Simplify right side
    315,171.45x = 49,549,768,365.36
  5. Step 5: Solve for x
    x = 49,549,768,365.36/315,171.45
  6. Step 6: Final answer
    x = 157,215.28

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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.