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Finding the Fourth Proportional to 228,179.79, 314,878.05 and 131,379.53

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Solution

The fourth proportional to 228,179.79, 314,878.05 and 131,379.53 is: 181,297.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,179.79 : 314,878.05 = 131,379.53 : x
  2. Step 2: Convert to fraction form
    228,179.79/314,878.05 = 131,379.53/x
  3. Step 3: Cross multiply
    228,179.79x = 314,878.05 × 131,379.53
  4. Step 4: Simplify right side
    228,179.79x = 41,368,528,641.93
  5. Step 5: Solve for x
    x = 41,368,528,641.93/228,179.79
  6. Step 6: Final answer
    x = 181,297.95

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.