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Finding the Fourth Proportional to 316,769.99, 475,054.39 and 103,489.30

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Solution

The fourth proportional to 316,769.99, 475,054.39 and 103,489.30 is: 155,201.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,769.99 : 475,054.39 = 103,489.30 : x
  2. Step 2: Convert to fraction form
    316,769.99/475,054.39 = 103,489.30/x
  3. Step 3: Cross multiply
    316,769.99x = 475,054.39 × 103,489.30
  4. Step 4: Simplify right side
    316,769.99x = 49,163,044,836.67
  5. Step 5: Solve for x
    x = 49,163,044,836.67/316,769.99
  6. Step 6: Final answer
    x = 155,201.08

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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.