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Finding the Fourth Proportional to 199,245.60, 299,062.80 and 99,518.40

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Solution

The fourth proportional to 199,245.60, 299,062.80 and 99,518.40 is: 149,374.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,245.60 : 299,062.80 = 99,518.40 : x
  2. Step 2: Convert to fraction form
    199,245.60/299,062.80 = 99,518.40/x
  3. Step 3: Cross multiply
    199,245.60x = 299,062.80 × 99,518.40
  4. Step 4: Simplify right side
    199,245.60x = 29,762,251,355.52
  5. Step 5: Solve for x
    x = 29,762,251,355.52/199,245.60
  6. Step 6: Final answer
    x = 149,374.70

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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.