Home / 221,890.14-306,133.65-126,329.22

Finding the Fourth Proportional to 221,890.14, 306,133.65 and 126,329.22

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Solution

The fourth proportional to 221,890.14, 306,133.65 and 126,329.22 is: 174,291.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,890.14 : 306,133.65 = 126,329.22 : x
  2. Step 2: Convert to fraction form
    221,890.14/306,133.65 = 126,329.22/x
  3. Step 3: Cross multiply
    221,890.14x = 306,133.65 × 126,329.22
  4. Step 4: Simplify right side
    221,890.14x = 38,673,625,220.25
  5. Step 5: Solve for x
    x = 38,673,625,220.25/221,890.14
  6. Step 6: Final answer
    x = 174,291.77

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1.5x scale

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.