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Finding the Fourth Proportional to 203,576.72, 280,935.54 and 112,946.49

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Solution

The fourth proportional to 203,576.72, 280,935.54 and 112,946.49 is: 155,865.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,576.72 : 280,935.54 = 112,946.49 : x
  2. Step 2: Convert to fraction form
    203,576.72/280,935.54 = 112,946.49/x
  3. Step 3: Cross multiply
    203,576.72x = 280,935.54 × 112,946.49
  4. Step 4: Simplify right side
    203,576.72x = 31,730,683,159.25
  5. Step 5: Solve for x
    x = 31,730,683,159.25/203,576.72
  6. Step 6: Final answer
    x = 155,865.97

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1.5x scale

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.