Home / 221,889.02-306,459.34-149,165.60

Finding the Fourth Proportional to 221,889.02, 306,459.34 and 149,165.60

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Solution

The fourth proportional to 221,889.02, 306,459.34 and 149,165.60 is: 206,018.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,889.02 : 306,459.34 = 149,165.60 : x
  2. Step 2: Convert to fraction form
    221,889.02/306,459.34 = 149,165.60/x
  3. Step 3: Cross multiply
    221,889.02x = 306,459.34 × 149,165.60
  4. Step 4: Simplify right side
    221,889.02x = 45,713,191,326.70
  5. Step 5: Solve for x
    x = 45,713,191,326.70/221,889.02
  6. Step 6: Final answer
    x = 206,018.27

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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.