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Finding the Fourth Proportional to 304,169.84, 456,215.87 and 126,643.76

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Solution

The fourth proportional to 304,169.84, 456,215.87 and 126,643.76 is: 189,949.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,169.84 : 456,215.87 = 126,643.76 : x
  2. Step 2: Convert to fraction form
    304,169.84/456,215.87 = 126,643.76/x
  3. Step 3: Cross multiply
    304,169.84x = 456,215.87 × 126,643.76
  4. Step 4: Simplify right side
    304,169.84x = 57,776,893,148.47
  5. Step 5: Solve for x
    x = 57,776,893,148.47/304,169.84
  6. Step 6: Final answer
    x = 189,949.45

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.