Home / 221,852.34-306,219.02-131,239.80

Finding the Fourth Proportional to 221,852.34, 306,219.02 and 131,239.80

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Solution

The fourth proportional to 221,852.34, 306,219.02 and 131,239.80 is: 181,148.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,852.34 : 306,219.02 = 131,239.80 : x
  2. Step 2: Convert to fraction form
    221,852.34/306,219.02 = 131,239.80/x
  3. Step 3: Cross multiply
    221,852.34x = 306,219.02 × 131,239.80
  4. Step 4: Simplify right side
    221,852.34x = 40,188,122,284.80
  5. Step 5: Solve for x
    x = 40,188,122,284.80/221,852.34
  6. Step 6: Final answer
    x = 181,148.07

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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.