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Finding the Fourth Proportional to 203,963.96, 281,510.76 and 130,329.32

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Solution

The fourth proportional to 203,963.96, 281,510.76 and 130,329.32 is: 179,880.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,963.96 : 281,510.76 = 130,329.32 : x
  2. Step 2: Convert to fraction form
    203,963.96/281,510.76 = 130,329.32/x
  3. Step 3: Cross multiply
    203,963.96x = 281,510.76 × 130,329.32
  4. Step 4: Simplify right side
    203,963.96x = 36,689,105,923.48
  5. Step 5: Solve for x
    x = 36,689,105,923.48/203,963.96
  6. Step 6: Final answer
    x = 179,880.34

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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.