Home / 276,217.87-412,302.34-255,931.39

Finding the Fourth Proportional to 276,217.87, 412,302.34 and 255,931.39

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Solution

The fourth proportional to 276,217.87, 412,302.34 and 255,931.39 is: 382,021.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,217.87 : 412,302.34 = 255,931.39 : x
  2. Step 2: Convert to fraction form
    276,217.87/412,302.34 = 255,931.39/x
  3. Step 3: Cross multiply
    276,217.87x = 412,302.34 × 255,931.39
  4. Step 4: Simplify right side
    276,217.87x = 105,521,110,976.45
  5. Step 5: Solve for x
    x = 105,521,110,976.45/276,217.87
  6. Step 6: Final answer
    x = 382,021.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.