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Finding the Fourth Proportional to 655,269.20, 983,422.20 and 256,101.20

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Solution

The fourth proportional to 655,269.20, 983,422.20 and 256,101.20 is: 384,354.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    655,269.20 : 983,422.20 = 256,101.20 : x
  2. Step 2: Convert to fraction form
    655,269.20/983,422.20 = 256,101.20/x
  3. Step 3: Cross multiply
    655,269.20x = 983,422.20 × 256,101.20
  4. Step 4: Simplify right side
    655,269.20x = 251,855,605,526.64
  5. Step 5: Solve for x
    x = 251,855,605,526.64/655,269.20
  6. Step 6: Final answer
    x = 384,354.41

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.