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Finding the Fourth Proportional to 312,015.36, 467,598.98 and 131,951.14

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Solution

The fourth proportional to 312,015.36, 467,598.98 and 131,951.14 is: 197,747.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,015.36 : 467,598.98 = 131,951.14 : x
  2. Step 2: Convert to fraction form
    312,015.36/467,598.98 = 131,951.14/x
  3. Step 3: Cross multiply
    312,015.36x = 467,598.98 × 131,951.14
  4. Step 4: Simplify right side
    312,015.36x = 61,700,218,473.84
  5. Step 5: Solve for x
    x = 61,700,218,473.84/312,015.36
  6. Step 6: Final answer
    x = 197,747.38

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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.