Home / 259,731.56-389,302.04-109,878.32

Finding the Fourth Proportional to 259,731.56, 389,302.04 and 109,878.32

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Solution

The fourth proportional to 259,731.56, 389,302.04 and 109,878.32 is: 164,692.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,731.56 : 389,302.04 = 109,878.32 : x
  2. Step 2: Convert to fraction form
    259,731.56/389,302.04 = 109,878.32/x
  3. Step 3: Cross multiply
    259,731.56x = 389,302.04 × 109,878.32
  4. Step 4: Simplify right side
    259,731.56x = 42,775,854,127.77
  5. Step 5: Solve for x
    x = 42,775,854,127.77/259,731.56
  6. Step 6: Final answer
    x = 164,692.55

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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.