Home / 228,784.86-342,974.25-86,530.62

Finding the Fourth Proportional to 228,784.86, 342,974.25 and 86,530.62

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Solution

The fourth proportional to 228,784.86, 342,974.25 and 86,530.62 is: 129,719.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,784.86 : 342,974.25 = 86,530.62 : x
  2. Step 2: Convert to fraction form
    228,784.86/342,974.25 = 86,530.62/x
  3. Step 3: Cross multiply
    228,784.86x = 342,974.25 × 86,530.62
  4. Step 4: Simplify right side
    228,784.86x = 29,677,774,496.54
  5. Step 5: Solve for x
    x = 29,677,774,496.54/228,784.86
  6. Step 6: Final answer
    x = 129,719.14

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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.