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Finding the Fourth Proportional to 401,757.30, 554,430.87 and 220,465.98

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Solution

The fourth proportional to 401,757.30, 554,430.87 and 220,465.98 is: 304,246.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,757.30 : 554,430.87 = 220,465.98 : x
  2. Step 2: Convert to fraction form
    401,757.30/554,430.87 = 220,465.98/x
  3. Step 3: Cross multiply
    401,757.30x = 554,430.87 × 220,465.98
  4. Step 4: Simplify right side
    401,757.30x = 122,233,145,096.80
  5. Step 5: Solve for x
    x = 122,233,145,096.80/401,757.30
  6. Step 6: Final answer
    x = 304,246.23

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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.