Home / 289,112.30-433,709.76-89,449.73

Finding the Fourth Proportional to 289,112.30, 433,709.76 and 89,449.73

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Solution

The fourth proportional to 289,112.30, 433,709.76 and 89,449.73 is: 134,187.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,112.30 : 433,709.76 = 89,449.73 : x
  2. Step 2: Convert to fraction form
    289,112.30/433,709.76 = 89,449.73/x
  3. Step 3: Cross multiply
    289,112.30x = 433,709.76 × 89,449.73
  4. Step 4: Simplify right side
    289,112.30x = 38,795,220,930.36
  5. Step 5: Solve for x
    x = 38,795,220,930.36/289,112.30
  6. Step 6: Final answer
    x = 134,187.38

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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.