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Finding the Fourth Proportional to 228,975.63, 315,988.56 and 127,011.11

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Solution

The fourth proportional to 228,975.63, 315,988.56 and 127,011.11 is: 175,276.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,975.63 : 315,988.56 = 127,011.11 : x
  2. Step 2: Convert to fraction form
    228,975.63/315,988.56 = 127,011.11/x
  3. Step 3: Cross multiply
    228,975.63x = 315,988.56 × 127,011.11
  4. Step 4: Simplify right side
    228,975.63x = 40,134,056,172.96
  5. Step 5: Solve for x
    x = 40,134,056,172.96/228,975.63
  6. Step 6: Final answer
    x = 175,276.54

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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.