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Finding the Fourth Proportional to 240,065.94, 331,325.70 and 143,273.90

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Solution

The fourth proportional to 240,065.94, 331,325.70 and 143,273.90 is: 197,738.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    240,065.94 : 331,325.70 = 143,273.90 : x
  2. Step 2: Convert to fraction form
    240,065.94/331,325.70 = 143,273.90/x
  3. Step 3: Cross multiply
    240,065.94x = 331,325.70 × 143,273.90
  4. Step 4: Simplify right side
    240,065.94x = 47,470,325,209.23
  5. Step 5: Solve for x
    x = 47,470,325,209.23/240,065.94
  6. Step 6: Final answer
    x = 197,738.69

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.