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Finding the Fourth Proportional to 655,271.20, 983,425.20 and 256,103.20

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Solution

The fourth proportional to 655,271.20, 983,425.20 and 256,103.20 is: 384,357.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    655,271.20 : 983,425.20 = 256,103.20 : x
  2. Step 2: Convert to fraction form
    655,271.20/983,425.20 = 256,103.20/x
  3. Step 3: Cross multiply
    655,271.20x = 983,425.20 × 256,103.20
  4. Step 4: Simplify right side
    655,271.20x = 251,858,340,680.64
  5. Step 5: Solve for x
    x = 251,858,340,680.64/655,271.20
  6. Step 6: Final answer
    x = 384,357.41

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1.5x scale

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.