Home / 384,895.27-531,134.05-212,803.28

Finding the Fourth Proportional to 384,895.27, 531,134.05 and 212,803.28

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Solution

The fourth proportional to 384,895.27, 531,134.05 and 212,803.28 is: 293,656.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,895.27 : 531,134.05 = 212,803.28 : x
  2. Step 2: Convert to fraction form
    384,895.27/531,134.05 = 212,803.28/x
  3. Step 3: Cross multiply
    384,895.27x = 531,134.05 × 212,803.28
  4. Step 4: Simplify right side
    384,895.27x = 113,027,067,959.68
  5. Step 5: Solve for x
    x = 113,027,067,959.68/384,895.27
  6. Step 6: Final answer
    x = 293,656.68

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.