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Finding the Fourth Proportional to 221,137.84, 331,706.67 and 54,925.84

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Solution

The fourth proportional to 221,137.84, 331,706.67 and 54,925.84 is: 82,388.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,137.84 : 331,706.67 = 54,925.84 : x
  2. Step 2: Convert to fraction form
    221,137.84/331,706.67 = 54,925.84/x
  3. Step 3: Cross multiply
    221,137.84x = 331,706.67 × 54,925.84
  4. Step 4: Simplify right side
    221,137.84x = 18,219,267,483.35
  5. Step 5: Solve for x
    x = 18,219,267,483.35/221,137.84
  6. Step 6: Final answer
    x = 82,388.74

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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.