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Finding the Fourth Proportional to 534,235.80, 801,650.70 and 218,670.60

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Solution

The fourth proportional to 534,235.80, 801,650.70 and 218,670.60 is: 328,127.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    534,235.80 : 801,650.70 = 218,670.60 : x
  2. Step 2: Convert to fraction form
    534,235.80/801,650.70 = 218,670.60/x
  3. Step 3: Cross multiply
    534,235.80x = 801,650.70 × 218,670.60
  4. Step 4: Simplify right side
    534,235.80x = 175,297,439,559.42
  5. Step 5: Solve for x
    x = 175,297,439,559.42/534,235.80
  6. Step 6: Final answer
    x = 328,127.47

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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.