Home / 221,807.58-306,148.88-126,370.56

Finding the Fourth Proportional to 221,807.58, 306,148.88 and 126,370.56

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Solution

The fourth proportional to 221,807.58, 306,148.88 and 126,370.56 is: 174,422.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,807.58 : 306,148.88 = 126,370.56 : x
  2. Step 2: Convert to fraction form
    221,807.58/306,148.88 = 126,370.56/x
  3. Step 3: Cross multiply
    221,807.58x = 306,148.88 × 126,370.56
  4. Step 4: Simplify right side
    221,807.58x = 38,688,205,408.97
  5. Step 5: Solve for x
    x = 38,688,205,408.97/221,807.58
  6. Step 6: Final answer
    x = 174,422.38

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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.