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Finding the Fourth Proportional to 343,507.13, 474,040.04 and 209,371.13

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Solution

The fourth proportional to 343,507.13, 474,040.04 and 209,371.13 is: 288,932.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,507.13 : 474,040.04 = 209,371.13 : x
  2. Step 2: Convert to fraction form
    343,507.13/474,040.04 = 209,371.13/x
  3. Step 3: Cross multiply
    343,507.13x = 474,040.04 × 209,371.13
  4. Step 4: Simplify right side
    343,507.13x = 99,250,298,840.05
  5. Step 5: Solve for x
    x = 99,250,298,840.05/343,507.13
  6. Step 6: Final answer
    x = 288,932.28

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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.