Home / 387,125.71-580,556.16-147,181.73

Finding the Fourth Proportional to 387,125.71, 580,556.16 and 147,181.73

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Solution

The fourth proportional to 387,125.71, 580,556.16 and 147,181.73 is: 220,722.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,125.71 : 580,556.16 = 147,181.73 : x
  2. Step 2: Convert to fraction form
    387,125.71/580,556.16 = 147,181.73/x
  3. Step 3: Cross multiply
    387,125.71x = 580,556.16 × 147,181.73
  4. Step 4: Simplify right side
    387,125.71x = 85,447,257,088.18
  5. Step 5: Solve for x
    x = 85,447,257,088.18/387,125.71
  6. Step 6: Final answer
    x = 220,722.25

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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.