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Finding the Fourth Proportional to 360,215.44, 540,323.16 and 135,626.28

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Solution

The fourth proportional to 360,215.44, 540,323.16 and 135,626.28 is: 203,439.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    360,215.44 : 540,323.16 = 135,626.28 : x
  2. Step 2: Convert to fraction form
    360,215.44/540,323.16 = 135,626.28/x
  3. Step 3: Cross multiply
    360,215.44x = 540,323.16 × 135,626.28
  4. Step 4: Simplify right side
    360,215.44x = 73,282,020,188.64
  5. Step 5: Solve for x
    x = 73,282,020,188.64/360,215.44
  6. Step 6: Final answer
    x = 203,439.42

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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.