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Finding the Fourth Proportional to 571,392.48, 857,249.20 and 211,557.92

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Solution

The fourth proportional to 571,392.48, 857,249.20 and 211,557.92 is: 317,396.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    571,392.48 : 857,249.20 = 211,557.92 : x
  2. Step 2: Convert to fraction form
    571,392.48/857,249.20 = 211,557.92/x
  3. Step 3: Cross multiply
    571,392.48x = 857,249.20 × 211,557.92
  4. Step 4: Simplify right side
    571,392.48x = 181,357,857,673.66
  5. Step 5: Solve for x
    x = 181,357,857,673.66/571,392.48
  6. Step 6: Final answer
    x = 317,396.30

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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.