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Finding the Fourth Proportional to 215,231.40, 322,847.10 and 57,484.20

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Solution

The fourth proportional to 215,231.40, 322,847.10 and 57,484.20 is: 86,226.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,231.40 : 322,847.10 = 57,484.20 : x
  2. Step 2: Convert to fraction form
    215,231.40/322,847.10 = 57,484.20/x
  3. Step 3: Cross multiply
    215,231.40x = 322,847.10 × 57,484.20
  4. Step 4: Simplify right side
    215,231.40x = 18,558,607,265.82
  5. Step 5: Solve for x
    x = 18,558,607,265.82/215,231.40
  6. Step 6: Final answer
    x = 86,226.30

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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.