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Finding the Fourth Proportional to 360,391.80, 540,856.98 and 135,973.56

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Solution

The fourth proportional to 360,391.80, 540,856.98 and 135,973.56 is: 204,061.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    360,391.80 : 540,856.98 = 135,973.56 : x
  2. Step 2: Convert to fraction form
    360,391.80/540,856.98 = 135,973.56/x
  3. Step 3: Cross multiply
    360,391.80x = 540,856.98 × 135,973.56
  4. Step 4: Simplify right side
    360,391.80x = 73,542,249,021.45
  5. Step 5: Solve for x
    x = 73,542,249,021.45/360,391.80
  6. Step 6: Final answer
    x = 204,061.94

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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.