Home / 255,478.20-352,560-148,110.48

Finding the Fourth Proportional to 255,478.20, 352,560 and 148,110.48

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Solution

The fourth proportional to 255,478.20, 352,560 and 148,110.48 is: 204,392.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,478.20 : 352,560 = 148,110.48 : x
  2. Step 2: Convert to fraction form
    255,478.20/352,560 = 148,110.48/x
  3. Step 3: Cross multiply
    255,478.20x = 352,560 × 148,110.48
  4. Step 4: Simplify right side
    255,478.20x = 52,217,830,828.80
  5. Step 5: Solve for x
    x = 52,217,830,828.80/255,478.20
  6. Step 6: Final answer
    x = 204,392.51

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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.