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Finding the Fourth Proportional to 611,029.22, 916,325.10 and 211,562.73

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Solution

The fourth proportional to 611,029.22, 916,325.10 and 211,562.73 is: 317,268.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    611,029.22 : 916,325.10 = 211,562.73 : x
  2. Step 2: Convert to fraction form
    611,029.22/916,325.10 = 211,562.73/x
  3. Step 3: Cross multiply
    611,029.22x = 916,325.10 × 211,562.73
  4. Step 4: Simplify right side
    611,029.22x = 193,860,239,723.52
  5. Step 5: Solve for x
    x = 193,860,239,723.52/611,029.22
  6. Step 6: Final answer
    x = 317,268.36

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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.