Home / 338,581.89-507,939.18-125,351.55

Finding the Fourth Proportional to 338,581.89, 507,939.18 and 125,351.55

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Solution

The fourth proportional to 338,581.89, 507,939.18 and 125,351.55 is: 188,051.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    338,581.89 : 507,939.18 = 125,351.55 : x
  2. Step 2: Convert to fraction form
    338,581.89/507,939.18 = 125,351.55/x
  3. Step 3: Cross multiply
    338,581.89x = 507,939.18 × 125,351.55
  4. Step 4: Simplify right side
    338,581.89x = 63,670,963,401.21
  5. Step 5: Solve for x
    x = 63,670,963,401.21/338,581.89
  6. Step 6: Final answer
    x = 188,051.89

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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.