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Finding the Fourth Proportional to 401,562.80, 554,174.04 and 240,386.66

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Solution

The fourth proportional to 401,562.80, 554,174.04 and 240,386.66 is: 331,743.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,562.80 : 554,174.04 = 240,386.66 : x
  2. Step 2: Convert to fraction form
    401,562.80/554,174.04 = 240,386.66/x
  3. Step 3: Cross multiply
    401,562.80x = 554,174.04 × 240,386.66
  4. Step 4: Simplify right side
    401,562.80x = 133,216,046,534.31
  5. Step 5: Solve for x
    x = 133,216,046,534.31/401,562.80
  6. Step 6: Final answer
    x = 331,743.99

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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.