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Finding the Fourth Proportional to 247,603.70, 371,405.55 and 231,857.30

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Solution

The fourth proportional to 247,603.70, 371,405.55 and 231,857.30 is: 347,785.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,603.70 : 371,405.55 = 231,857.30 : x
  2. Step 2: Convert to fraction form
    247,603.70/371,405.55 = 231,857.30/x
  3. Step 3: Cross multiply
    247,603.70x = 371,405.55 × 231,857.30
  4. Step 4: Simplify right side
    247,603.70x = 86,113,088,028.02
  5. Step 5: Solve for x
    x = 86,113,088,028.02/247,603.70
  6. Step 6: Final answer
    x = 347,785.95

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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.