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Finding the Fourth Proportional to 662,126.80, 993,113.40 and 188,885.20

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Solution

The fourth proportional to 662,126.80, 993,113.40 and 188,885.20 is: 283,305.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    662,126.80 : 993,113.40 = 188,885.20 : x
  2. Step 2: Convert to fraction form
    662,126.80/993,113.40 = 188,885.20/x
  3. Step 3: Cross multiply
    662,126.80x = 993,113.40 × 188,885.20
  4. Step 4: Simplify right side
    662,126.80x = 187,584,423,181.68
  5. Step 5: Solve for x
    x = 187,584,423,181.68/662,126.80
  6. Step 6: Final answer
    x = 283,305.89

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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.