Home / 338,128.60-466,632-187,225.60

Finding the Fourth Proportional to 338,128.60, 466,632 and 187,225.60

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Solution

The fourth proportional to 338,128.60, 466,632 and 187,225.60 is: 258,379.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    338,128.60 : 466,632 = 187,225.60 : x
  2. Step 2: Convert to fraction form
    338,128.60/466,632 = 187,225.60/x
  3. Step 3: Cross multiply
    338,128.60x = 466,632 × 187,225.60
  4. Step 4: Simplify right side
    338,128.60x = 87,365,456,179.20
  5. Step 5: Solve for x
    x = 87,365,456,179.20/338,128.60
  6. Step 6: Final answer
    x = 258,379.37

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.