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Finding the Fourth Proportional to 276,873.60, 415,051.20 and 216,868.80

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Solution

The fourth proportional to 276,873.60, 415,051.20 and 216,868.80 is: 325,100.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,873.60 : 415,051.20 = 216,868.80 : x
  2. Step 2: Convert to fraction form
    276,873.60/415,051.20 = 216,868.80/x
  3. Step 3: Cross multiply
    276,873.60x = 415,051.20 × 216,868.80
  4. Step 4: Simplify right side
    276,873.60x = 90,011,655,682.56
  5. Step 5: Solve for x
    x = 90,011,655,682.56/276,873.60
  6. Step 6: Final answer
    x = 325,100.17

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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.