Home / 289,138.12-433,736.24-99,573.52

Finding the Fourth Proportional to 289,138.12, 433,736.24 and 99,573.52

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Solution

The fourth proportional to 289,138.12, 433,736.24 and 99,573.52 is: 149,370.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,138.12 : 433,736.24 = 99,573.52 : x
  2. Step 2: Convert to fraction form
    289,138.12/433,736.24 = 99,573.52/x
  3. Step 3: Cross multiply
    289,138.12x = 433,736.24 × 99,573.52
  4. Step 4: Simplify right side
    289,138.12x = 43,188,643,399.41
  5. Step 5: Solve for x
    x = 43,188,643,399.41/289,138.12
  6. Step 6: Final answer
    x = 149,370.28

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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.