Home / 203,913.40-305,870.10-140,927.80

Finding the Fourth Proportional to 203,913.40, 305,870.10 and 140,927.80

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Solution

The fourth proportional to 203,913.40, 305,870.10 and 140,927.80 is: 211,391.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,913.40 : 305,870.10 = 140,927.80 : x
  2. Step 2: Convert to fraction form
    203,913.40/305,870.10 = 140,927.80/x
  3. Step 3: Cross multiply
    203,913.40x = 305,870.10 × 140,927.80
  4. Step 4: Simplify right side
    203,913.40x = 43,105,600,278.78
  5. Step 5: Solve for x
    x = 43,105,600,278.78/203,913.40
  6. Step 6: Final answer
    x = 211,391.70

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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.