Home / 240,512.72-331,905.41-143,711.31

Finding the Fourth Proportional to 240,512.72, 331,905.41 and 143,711.31

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Solution

The fourth proportional to 240,512.72, 331,905.41 and 143,711.31 is: 198,320.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    240,512.72 : 331,905.41 = 143,711.31 : x
  2. Step 2: Convert to fraction form
    240,512.72/331,905.41 = 143,711.31/x
  3. Step 3: Cross multiply
    240,512.72x = 331,905.41 × 143,711.31
  4. Step 4: Simplify right side
    240,512.72x = 47,698,562,332.19
  5. Step 5: Solve for x
    x = 47,698,562,332.19/240,512.72
  6. Step 6: Final answer
    x = 198,320.34

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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.