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Finding the Fourth Proportional to 338,923.60, 508,239.60 and 170,378.80

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Solution

The fourth proportional to 338,923.60, 508,239.60 and 170,378.80 is: 255,494.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    338,923.60 : 508,239.60 = 170,378.80 : x
  2. Step 2: Convert to fraction form
    338,923.60/508,239.60 = 170,378.80/x
  3. Step 3: Cross multiply
    338,923.60x = 508,239.60 × 170,378.80
  4. Step 4: Simplify right side
    338,923.60x = 86,593,253,160.48
  5. Step 5: Solve for x
    x = 86,593,253,160.48/338,923.60
  6. Step 6: Final answer
    x = 255,494.91

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1.5x scale

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.