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Finding the Fourth Proportional to 228,689.93, 315,583.54 and 131,897.82

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Solution

The fourth proportional to 228,689.93, 315,583.54 and 131,897.82 is: 182,014.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,689.93 : 315,583.54 = 131,897.82 : x
  2. Step 2: Convert to fraction form
    228,689.93/315,583.54 = 131,897.82/x
  3. Step 3: Cross multiply
    228,689.93x = 315,583.54 × 131,897.82
  4. Step 4: Simplify right side
    228,689.93x = 41,624,780,774.34
  5. Step 5: Solve for x
    x = 41,624,780,774.34/228,689.93
  6. Step 6: Final answer
    x = 182,014.05

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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.