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Finding the Fourth Proportional to 276,026.28, 380,914.12 and 153,519.77

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Solution

The fourth proportional to 276,026.28, 380,914.12 and 153,519.77 is: 211,856.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,026.28 : 380,914.12 = 153,519.77 : x
  2. Step 2: Convert to fraction form
    276,026.28/380,914.12 = 153,519.77/x
  3. Step 3: Cross multiply
    276,026.28x = 380,914.12 × 153,519.77
  4. Step 4: Simplify right side
    276,026.28x = 58,477,847,197.58
  5. Step 5: Solve for x
    x = 58,477,847,197.58/276,026.28
  6. Step 6: Final answer
    x = 211,856.08

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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.