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Finding the Fourth Proportional to 401,561.16, 554,061.44 and 240,354.96

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Solution

The fourth proportional to 401,561.16, 554,061.44 and 240,354.96 is: 331,634.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,561.16 : 554,061.44 = 240,354.96 : x
  2. Step 2: Convert to fraction form
    401,561.16/554,061.44 = 240,354.96/x
  3. Step 3: Cross multiply
    401,561.16x = 554,061.44 × 240,354.96
  4. Step 4: Simplify right side
    401,561.16x = 133,171,415,248.74
  5. Step 5: Solve for x
    x = 133,171,415,248.74/401,561.16
  6. Step 6: Final answer
    x = 331,634.20

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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.