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Finding the Fourth Proportional to 259,869.20, 389,803.80 and 62,877.20

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Solution

The fourth proportional to 259,869.20, 389,803.80 and 62,877.20 is: 94,315.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,869.20 : 389,803.80 = 62,877.20 : x
  2. Step 2: Convert to fraction form
    259,869.20/389,803.80 = 62,877.20/x
  3. Step 3: Cross multiply
    259,869.20x = 389,803.80 × 62,877.20
  4. Step 4: Simplify right side
    259,869.20x = 24,509,769,544.34
  5. Step 5: Solve for x
    x = 24,509,769,544.34/259,869.20
  6. Step 6: Final answer
    x = 94,315.79

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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.