Home / 318,440.51-439,261.29-203,677.28

Finding the Fourth Proportional to 318,440.51, 439,261.29 and 203,677.28

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Solution

The fourth proportional to 318,440.51, 439,261.29 and 203,677.28 is: 280,955.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,440.51 : 439,261.29 = 203,677.28 : x
  2. Step 2: Convert to fraction form
    318,440.51/439,261.29 = 203,677.28/x
  3. Step 3: Cross multiply
    318,440.51x = 439,261.29 × 203,677.28
  4. Step 4: Simplify right side
    318,440.51x = 89,467,542,560.18
  5. Step 5: Solve for x
    x = 89,467,542,560.18/318,440.51
  6. Step 6: Final answer
    x = 280,955.28

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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.