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Finding the Fourth Proportional to 255,991.61, 384,036.84 and 98,207.75

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Solution

The fourth proportional to 255,991.61, 384,036.84 and 98,207.75 is: 147,330.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,991.61 : 384,036.84 = 98,207.75 : x
  2. Step 2: Convert to fraction form
    255,991.61/384,036.84 = 98,207.75/x
  3. Step 3: Cross multiply
    255,991.61x = 384,036.84 × 98,207.75
  4. Step 4: Simplify right side
    255,991.61x = 37,715,392,053.33
  5. Step 5: Solve for x
    x = 37,715,392,053.33/255,991.61
  6. Step 6: Final answer
    x = 147,330.58

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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.