Home / 255,979.04-384,014.13-87,518.09

Finding the Fourth Proportional to 255,979.04, 384,014.13 and 87,518.09

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Solution

The fourth proportional to 255,979.04, 384,014.13 and 87,518.09 is: 131,292.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,979.04 : 384,014.13 = 87,518.09 : x
  2. Step 2: Convert to fraction form
    255,979.04/384,014.13 = 87,518.09/x
  3. Step 3: Cross multiply
    255,979.04x = 384,014.13 × 87,518.09
  4. Step 4: Simplify right side
    255,979.04x = 33,608,183,190.61
  5. Step 5: Solve for x
    x = 33,608,183,190.61/255,979.04
  6. Step 6: Final answer
    x = 131,292.72

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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.