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Finding the Fourth Proportional to 180,038.56, 270,227.34 and 91,355.71

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Solution

The fourth proportional to 180,038.56, 270,227.34 and 91,355.71 is: 137,119.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,038.56 : 270,227.34 = 91,355.71 : x
  2. Step 2: Convert to fraction form
    180,038.56/270,227.34 = 91,355.71/x
  3. Step 3: Cross multiply
    180,038.56x = 270,227.34 × 91,355.71
  4. Step 4: Simplify right side
    180,038.56x = 24,686,810,507.11
  5. Step 5: Solve for x
    x = 24,686,810,507.11/180,038.56
  6. Step 6: Final answer
    x = 137,119.57

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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.