Home / 221,883.02-306,220-131,268.12

Finding the Fourth Proportional to 221,883.02, 306,220 and 131,268.12

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Solution

The fourth proportional to 221,883.02, 306,220 and 131,268.12 is: 181,162.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,883.02 : 306,220 = 131,268.12 : x
  2. Step 2: Convert to fraction form
    221,883.02/306,220 = 131,268.12/x
  3. Step 3: Cross multiply
    221,883.02x = 306,220 × 131,268.12
  4. Step 4: Simplify right side
    221,883.02x = 40,196,923,706.40
  5. Step 5: Solve for x
    x = 40,196,923,706.40/221,883.02
  6. Step 6: Final answer
    x = 181,162.69

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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.