Home / 356,153.08-491,443.02-212,882.68

Finding the Fourth Proportional to 356,153.08, 491,443.02 and 212,882.68

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Solution

The fourth proportional to 356,153.08, 491,443.02 and 212,882.68 is: 293,749.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,153.08 : 491,443.02 = 212,882.68 : x
  2. Step 2: Convert to fraction form
    356,153.08/491,443.02 = 212,882.68/x
  3. Step 3: Cross multiply
    356,153.08x = 491,443.02 × 212,882.68
  4. Step 4: Simplify right side
    356,153.08x = 104,619,707,164.89
  5. Step 5: Solve for x
    x = 104,619,707,164.89/356,153.08
  6. Step 6: Final answer
    x = 293,749.27

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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.