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Finding the Fourth Proportional to 389,850.84, 537,994.08 and 220,095.90

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Solution

The fourth proportional to 389,850.84, 537,994.08 and 220,095.90 is: 303,732.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,850.84 : 537,994.08 = 220,095.90 : x
  2. Step 2: Convert to fraction form
    389,850.84/537,994.08 = 220,095.90/x
  3. Step 3: Cross multiply
    389,850.84x = 537,994.08 × 220,095.90
  4. Step 4: Simplify right side
    389,850.84x = 118,410,291,232.27
  5. Step 5: Solve for x
    x = 118,410,291,232.27/389,850.84
  6. Step 6: Final answer
    x = 303,732.30

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.