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Finding the Fourth Proportional to 482,868.96, 666,352.64 and 268,008.40

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Solution

The fourth proportional to 482,868.96, 666,352.64 and 268,008.40 is: 369,847.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    482,868.96 : 666,352.64 = 268,008.40 : x
  2. Step 2: Convert to fraction form
    482,868.96/666,352.64 = 268,008.40/x
  3. Step 3: Cross multiply
    482,868.96x = 666,352.64 × 268,008.40
  4. Step 4: Simplify right side
    482,868.96x = 178,588,104,882.18
  5. Step 5: Solve for x
    x = 178,588,104,882.18/482,868.96
  6. Step 6: Final answer
    x = 369,847.97

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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.