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Finding the Fourth Proportional to 313,420.02, 470,120.85 and 88,780.02

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Solution

The fourth proportional to 313,420.02, 470,120.85 and 88,780.02 is: 133,167.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,420.02 : 470,120.85 = 88,780.02 : x
  2. Step 2: Convert to fraction form
    313,420.02/470,120.85 = 88,780.02/x
  3. Step 3: Cross multiply
    313,420.02x = 470,120.85 × 88,780.02
  4. Step 4: Simplify right side
    313,420.02x = 41,737,338,465.42
  5. Step 5: Solve for x
    x = 41,737,338,465.42/313,420.02
  6. Step 6: Final answer
    x = 133,167.43

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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.