Home / 221,891.04-306,174.24-126,399.60

Finding the Fourth Proportional to 221,891.04, 306,174.24 and 126,399.60

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Solution

The fourth proportional to 221,891.04, 306,174.24 and 126,399.60 is: 174,411.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,891.04 : 306,174.24 = 126,399.60 : x
  2. Step 2: Convert to fraction form
    221,891.04/306,174.24 = 126,399.60/x
  3. Step 3: Cross multiply
    221,891.04x = 306,174.24 × 126,399.60
  4. Step 4: Simplify right side
    221,891.04x = 38,700,301,466.30
  5. Step 5: Solve for x
    x = 38,700,301,466.30/221,891.04
  6. Step 6: Final answer
    x = 174,411.29

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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.