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Finding the Fourth Proportional to 259,652.79, 389,599.74 and 99,675.50

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Solution

The fourth proportional to 259,652.79, 389,599.74 and 99,675.50 is: 149,559.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,652.79 : 389,599.74 = 99,675.50 : x
  2. Step 2: Convert to fraction form
    259,652.79/389,599.74 = 99,675.50/x
  3. Step 3: Cross multiply
    259,652.79x = 389,599.74 × 99,675.50
  4. Step 4: Simplify right side
    259,652.79x = 38,833,546,936.37
  5. Step 5: Solve for x
    x = 38,833,546,936.37/259,652.79
  6. Step 6: Final answer
    x = 149,559.52

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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.