Home / 400,126.30-552,166.50-218,837.64

Finding the Fourth Proportional to 400,126.30, 552,166.50 and 218,837.64

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Solution

The fourth proportional to 400,126.30, 552,166.50 and 218,837.64 is: 301,991.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,126.30 : 552,166.50 = 218,837.64 : x
  2. Step 2: Convert to fraction form
    400,126.30/552,166.50 = 218,837.64/x
  3. Step 3: Cross multiply
    400,126.30x = 552,166.50 × 218,837.64
  4. Step 4: Simplify right side
    400,126.30x = 120,834,813,747.06
  5. Step 5: Solve for x
    x = 120,834,813,747.06/400,126.30
  6. Step 6: Final answer
    x = 301,991.68

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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.