Home / 276,320.88-380,401.65-263,625.35

Finding the Fourth Proportional to 276,320.88, 380,401.65 and 263,625.35

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Solution

The fourth proportional to 276,320.88, 380,401.65 and 263,625.35 is: 362,924.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,320.88 : 380,401.65 = 263,625.35 : x
  2. Step 2: Convert to fraction form
    276,320.88/380,401.65 = 263,625.35/x
  3. Step 3: Cross multiply
    276,320.88x = 380,401.65 × 263,625.35
  4. Step 4: Simplify right side
    276,320.88x = 100,283,516,219.82
  5. Step 5: Solve for x
    x = 100,283,516,219.82/276,320.88
  6. Step 6: Final answer
    x = 362,924.13

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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.