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Finding the Fourth Proportional to 400,135.98, 552,167.01 and 218,812.62

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Solution

The fourth proportional to 400,135.98, 552,167.01 and 218,812.62 is: 301,950.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,135.98 : 552,167.01 = 218,812.62 : x
  2. Step 2: Convert to fraction form
    400,135.98/552,167.01 = 218,812.62/x
  3. Step 3: Cross multiply
    400,135.98x = 552,167.01 × 218,812.62
  4. Step 4: Simplify right side
    400,135.98x = 120,821,110,135.67
  5. Step 5: Solve for x
    x = 120,821,110,135.67/400,135.98
  6. Step 6: Final answer
    x = 301,950.13

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1.5x scale

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.