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Finding the Fourth Proportional to 243,998.60, 365,997.90 and 173,139.80

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Solution

The fourth proportional to 243,998.60, 365,997.90 and 173,139.80 is: 259,709.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,998.60 : 365,997.90 = 173,139.80 : x
  2. Step 2: Convert to fraction form
    243,998.60/365,997.90 = 173,139.80/x
  3. Step 3: Cross multiply
    243,998.60x = 365,997.90 × 173,139.80
  4. Step 4: Simplify right side
    243,998.60x = 63,368,803,206.42
  5. Step 5: Solve for x
    x = 63,368,803,206.42/243,998.60
  6. Step 6: Final answer
    x = 259,709.70

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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.