Home / 221,775.72-306,053.42-126,282.80

Finding the Fourth Proportional to 221,775.72, 306,053.42 and 126,282.80

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Solution

The fourth proportional to 221,775.72, 306,053.42 and 126,282.80 is: 174,271.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,775.72 : 306,053.42 = 126,282.80 : x
  2. Step 2: Convert to fraction form
    221,775.72/306,053.42 = 126,282.80/x
  3. Step 3: Cross multiply
    221,775.72x = 306,053.42 × 126,282.80
  4. Step 4: Simplify right side
    221,775.72x = 38,649,280,665.49
  5. Step 5: Solve for x
    x = 38,649,280,665.49/221,775.72
  6. Step 6: Final answer
    x = 174,271.92

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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.