Home / 255,971.27-383,657.90-192,587.72

Finding the Fourth Proportional to 255,971.27, 383,657.90 and 192,587.72

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Solution

The fourth proportional to 255,971.27, 383,657.90 and 192,587.72 is: 288,656.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,971.27 : 383,657.90 = 192,587.72 : x
  2. Step 2: Convert to fraction form
    255,971.27/383,657.90 = 192,587.72/x
  3. Step 3: Cross multiply
    255,971.27x = 383,657.90 × 192,587.72
  4. Step 4: Simplify right side
    255,971.27x = 73,887,797,339.76
  5. Step 5: Solve for x
    x = 73,887,797,339.76/255,971.27
  6. Step 6: Final answer
    x = 288,656.60

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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.