Home / 287,910.45-431,944.14-88,226.42

Finding the Fourth Proportional to 287,910.45, 431,944.14 and 88,226.42

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Solution

The fourth proportional to 287,910.45, 431,944.14 and 88,226.42 is: 132,363.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,910.45 : 431,944.14 = 88,226.42 : x
  2. Step 2: Convert to fraction form
    287,910.45/431,944.14 = 88,226.42/x
  3. Step 3: Cross multiply
    287,910.45x = 431,944.14 × 88,226.42
  4. Step 4: Simplify right side
    287,910.45x = 38,108,883,283.31
  5. Step 5: Solve for x
    x = 38,108,883,283.31/287,910.45
  6. Step 6: Final answer
    x = 132,363.67

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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.