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Finding the Fourth Proportional to 199,539.60, 299,364.06 and 99,579.12

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Solution

The fourth proportional to 199,539.60, 299,364.06 and 99,579.12 is: 149,395.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,539.60 : 299,364.06 = 99,579.12 : x
  2. Step 2: Convert to fraction form
    199,539.60/299,364.06 = 99,579.12/x
  3. Step 3: Cross multiply
    199,539.60x = 299,364.06 × 99,579.12
  4. Step 4: Simplify right side
    199,539.60x = 29,810,409,654.43
  5. Step 5: Solve for x
    x = 29,810,409,654.43/199,539.60
  6. Step 6: Final answer
    x = 149,395.96

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.