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Finding the Fourth Proportional to 525,008.88, 787,676.04 and 221,560.20

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Solution

The fourth proportional to 525,008.88, 787,676.04 and 221,560.20 is: 332,408.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    525,008.88 : 787,676.04 = 221,560.20 : x
  2. Step 2: Convert to fraction form
    525,008.88/787,676.04 = 221,560.20/x
  3. Step 3: Cross multiply
    525,008.88x = 787,676.04 × 221,560.20
  4. Step 4: Simplify right side
    525,008.88x = 174,517,660,957.61
  5. Step 5: Solve for x
    x = 174,517,660,957.61/525,008.88
  6. Step 6: Final answer
    x = 332,408.97

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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.