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Finding the Fourth Proportional to 360,209.51, 540,314.25 and 135,620.33

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Solution

The fourth proportional to 360,209.51, 540,314.25 and 135,620.33 is: 203,430.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    360,209.51 : 540,314.25 = 135,620.33 : x
  2. Step 2: Convert to fraction form
    360,209.51/540,314.25 = 135,620.33/x
  3. Step 3: Cross multiply
    360,209.51x = 540,314.25 × 135,620.33
  4. Step 4: Simplify right side
    360,209.51x = 73,277,593,509.03
  5. Step 5: Solve for x
    x = 73,277,593,509.03/360,209.51
  6. Step 6: Final answer
    x = 203,430.48

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Similar ratio
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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.