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Finding the Fourth Proportional to 475,935.76, 656,800.08 and 261,086.80

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Solution

The fourth proportional to 475,935.76, 656,800.08 and 261,086.80 is: 360,304.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    475,935.76 : 656,800.08 = 261,086.80 : x
  2. Step 2: Convert to fraction form
    475,935.76/656,800.08 = 261,086.80/x
  3. Step 3: Cross multiply
    475,935.76x = 656,800.08 × 261,086.80
  4. Step 4: Simplify right side
    475,935.76x = 171,481,831,126.94
  5. Step 5: Solve for x
    x = 171,481,831,126.94/475,935.76
  6. Step 6: Final answer
    x = 360,304.57

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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.