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Finding the Fourth Proportional to 450,953.67, 622,316.31 and 247,008

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Solution

The fourth proportional to 450,953.67, 622,316.31 and 247,008 is: 340,871.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    450,953.67 : 622,316.31 = 247,008 : x
  2. Step 2: Convert to fraction form
    450,953.67/622,316.31 = 247,008/x
  3. Step 3: Cross multiply
    450,953.67x = 622,316.31 × 247,008
  4. Step 4: Simplify right side
    450,953.67x = 153,717,107,100.48
  5. Step 5: Solve for x
    x = 153,717,107,100.48/450,953.67
  6. Step 6: Final answer
    x = 340,871.17

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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.