Home / 221,999.02-306,154.22-145,490.24

Finding the Fourth Proportional to 221,999.02, 306,154.22 and 145,490.24

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Solution

The fourth proportional to 221,999.02, 306,154.22 and 145,490.24 is: 200,642.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,999.02 : 306,154.22 = 145,490.24 : x
  2. Step 2: Convert to fraction form
    221,999.02/306,154.22 = 145,490.24/x
  3. Step 3: Cross multiply
    221,999.02x = 306,154.22 × 145,490.24
  4. Step 4: Simplify right side
    221,999.02x = 44,542,450,982.75
  5. Step 5: Solve for x
    x = 44,542,450,982.75/221,999.02
  6. Step 6: Final answer
    x = 200,642.56

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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.