Home / 354,264.35-531,511.28-212,087.39

Finding the Fourth Proportional to 354,264.35, 531,511.28 and 212,087.39

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Solution

The fourth proportional to 354,264.35, 531,511.28 and 212,087.39 is: 318,199.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,264.35 : 531,511.28 = 212,087.39 : x
  2. Step 2: Convert to fraction form
    354,264.35/531,511.28 = 212,087.39/x
  3. Step 3: Cross multiply
    354,264.35x = 531,511.28 × 212,087.39
  4. Step 4: Simplify right side
    354,264.35x = 112,726,841,989.76
  5. Step 5: Solve for x
    x = 112,726,841,989.76/354,264.35
  6. Step 6: Final answer
    x = 318,199.79

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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.