Home / 208,330.24-312,445.80-89,936.80

Finding the Fourth Proportional to 208,330.24, 312,445.80 and 89,936.80

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Solution

The fourth proportional to 208,330.24, 312,445.80 and 89,936.80 is: 134,883.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,330.24 : 312,445.80 = 89,936.80 : x
  2. Step 2: Convert to fraction form
    208,330.24/312,445.80 = 89,936.80/x
  3. Step 3: Cross multiply
    208,330.24x = 312,445.80 × 89,936.80
  4. Step 4: Simplify right side
    208,330.24x = 28,100,375,425.44
  5. Step 5: Solve for x
    x = 28,100,375,425.44/208,330.24
  6. Step 6: Final answer
    x = 134,883.80

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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.