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Finding the Fourth Proportional to 304,347.31, 420,133.80 and 181,882.90

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Solution

The fourth proportional to 304,347.31, 420,133.80 and 181,882.90 is: 251,078.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,347.31 : 420,133.80 = 181,882.90 : x
  2. Step 2: Convert to fraction form
    304,347.31/420,133.80 = 181,882.90/x
  3. Step 3: Cross multiply
    304,347.31x = 420,133.80 × 181,882.90
  4. Step 4: Simplify right side
    304,347.31x = 76,415,153,932.02
  5. Step 5: Solve for x
    x = 76,415,153,932.02/304,347.31
  6. Step 6: Final answer
    x = 251,078.79

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1.5x scale

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.