Home / 221,860.54-306,132.15-126,369.10

Finding the Fourth Proportional to 221,860.54, 306,132.15 and 126,369.10

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Solution

The fourth proportional to 221,860.54, 306,132.15 and 126,369.10 is: 174,369.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,860.54 : 306,132.15 = 126,369.10 : x
  2. Step 2: Convert to fraction form
    221,860.54/306,132.15 = 126,369.10/x
  3. Step 3: Cross multiply
    221,860.54x = 306,132.15 × 126,369.10
  4. Step 4: Simplify right side
    221,860.54x = 38,685,644,276.57
  5. Step 5: Solve for x
    x = 38,685,644,276.57/221,860.54
  6. Step 6: Final answer
    x = 174,369.20

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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.