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Finding the Fourth Proportional to 228,482, 315,305.16 and 127,880.72

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Solution

The fourth proportional to 228,482, 315,305.16 and 127,880.72 is: 176,475.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,482 : 315,305.16 = 127,880.72 : x
  2. Step 2: Convert to fraction form
    228,482/315,305.16 = 127,880.72/x
  3. Step 3: Cross multiply
    228,482x = 315,305.16 × 127,880.72
  4. Step 4: Simplify right side
    228,482x = 40,321,450,880.52
  5. Step 5: Solve for x
    x = 40,321,450,880.52/228,482
  6. Step 6: Final answer
    x = 176,475.39

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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.