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Finding the Fourth Proportional to 534,421.70, 800,952.15 and 218,521.70

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Solution

The fourth proportional to 534,421.70, 800,952.15 and 218,521.70 is: 327,504.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    534,421.70 : 800,952.15 = 218,521.70 : x
  2. Step 2: Convert to fraction form
    534,421.70/800,952.15 = 218,521.70/x
  3. Step 3: Cross multiply
    534,421.70x = 800,952.15 × 218,521.70
  4. Step 4: Simplify right side
    534,421.70x = 175,025,425,436.66
  5. Step 5: Solve for x
    x = 175,025,425,436.66/534,421.70
  6. Step 6: Final answer
    x = 327,504.34

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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.