Home / 228,579.23-342,891.39-78,799.79

Finding the Fourth Proportional to 228,579.23, 342,891.39 and 78,799.79

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Solution

The fourth proportional to 228,579.23, 342,891.39 and 78,799.79 is: 118,207.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,579.23 : 342,891.39 = 78,799.79 : x
  2. Step 2: Convert to fraction form
    228,579.23/342,891.39 = 78,799.79/x
  3. Step 3: Cross multiply
    228,579.23x = 342,891.39 × 78,799.79
  4. Step 4: Simplify right side
    228,579.23x = 27,019,767,810.35
  5. Step 5: Solve for x
    x = 27,019,767,810.35/228,579.23
  6. Step 6: Final answer
    x = 118,207.45

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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.