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Finding the Fourth Proportional to 303,497.70, 455,246.55 and 247,401.15

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Solution

The fourth proportional to 303,497.70, 455,246.55 and 247,401.15 is: 371,101.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,497.70 : 455,246.55 = 247,401.15 : x
  2. Step 2: Convert to fraction form
    303,497.70/455,246.55 = 247,401.15/x
  3. Step 3: Cross multiply
    303,497.70x = 455,246.55 × 247,401.15
  4. Step 4: Simplify right side
    303,497.70x = 112,628,520,003.53
  5. Step 5: Solve for x
    x = 112,628,520,003.53/303,497.70
  6. Step 6: Final answer
    x = 371,101.73

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Similar ratio
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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.