Home / 354,108.51-531,217.98-143,761.23

Finding the Fourth Proportional to 354,108.51, 531,217.98 and 143,761.23

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Solution

The fourth proportional to 354,108.51, 531,217.98 and 143,761.23 is: 215,664.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,108.51 : 531,217.98 = 143,761.23 : x
  2. Step 2: Convert to fraction form
    354,108.51/531,217.98 = 143,761.23/x
  3. Step 3: Cross multiply
    354,108.51x = 531,217.98 × 143,761.23
  4. Step 4: Simplify right side
    354,108.51x = 76,368,550,202.92
  5. Step 5: Solve for x
    x = 76,368,550,202.92/354,108.51
  6. Step 6: Final answer
    x = 215,664.26

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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.