Home / 219,019.77-328,570.20-69,297.75

Finding the Fourth Proportional to 219,019.77, 328,570.20 and 69,297.75

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Solution

The fourth proportional to 219,019.77, 328,570.20 and 69,297.75 is: 103,959.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,019.77 : 328,570.20 = 69,297.75 : x
  2. Step 2: Convert to fraction form
    219,019.77/328,570.20 = 69,297.75/x
  3. Step 3: Cross multiply
    219,019.77x = 328,570.20 × 69,297.75
  4. Step 4: Simplify right side
    219,019.77x = 22,769,175,577.05
  5. Step 5: Solve for x
    x = 22,769,175,577.05/219,019.77
  6. Step 6: Final answer
    x = 103,959.45

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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.