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Finding the Fourth Proportional to 288,089.87, 397,437.44 and 274,749.17

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Solution

The fourth proportional to 288,089.87, 397,437.44 and 274,749.17 is: 379,033.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,089.87 : 397,437.44 = 274,749.17 : x
  2. Step 2: Convert to fraction form
    288,089.87/397,437.44 = 274,749.17/x
  3. Step 3: Cross multiply
    288,089.87x = 397,437.44 × 274,749.17
  4. Step 4: Simplify right side
    288,089.87x = 109,195,603,405.99
  5. Step 5: Solve for x
    x = 109,195,603,405.99/288,089.87
  6. Step 6: Final answer
    x = 379,033.13

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.