Home / 423,352.16-634,936.08-212,766.56

Finding the Fourth Proportional to 423,352.16, 634,936.08 and 212,766.56

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Solution

The fourth proportional to 423,352.16, 634,936.08 and 212,766.56 is: 319,103.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    423,352.16 : 634,936.08 = 212,766.56 : x
  2. Step 2: Convert to fraction form
    423,352.16/634,936.08 = 212,766.56/x
  3. Step 3: Cross multiply
    423,352.16x = 634,936.08 × 212,766.56
  4. Step 4: Simplify right side
    423,352.16x = 135,093,165,561.49
  5. Step 5: Solve for x
    x = 135,093,165,561.49/423,352.16
  6. Step 6: Final answer
    x = 319,103.52

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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.