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Finding the Fourth Proportional to 550,145.52, 825,148.22 and 212,955.48

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Solution

The fourth proportional to 550,145.52, 825,148.22 and 212,955.48 is: 319,406.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    550,145.52 : 825,148.22 = 212,955.48 : x
  2. Step 2: Convert to fraction form
    550,145.52/825,148.22 = 212,955.48/x
  3. Step 3: Cross multiply
    550,145.52x = 825,148.22 × 212,955.48
  4. Step 4: Simplify right side
    550,145.52x = 175,719,834,196.47
  5. Step 5: Solve for x
    x = 175,719,834,196.47/550,145.52
  6. Step 6: Final answer
    x = 319,406.10

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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.