Home / 255,686.78-352,769.55-148,235.36

Finding the Fourth Proportional to 255,686.78, 352,769.55 and 148,235.36

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Solution

The fourth proportional to 255,686.78, 352,769.55 and 148,235.36 is: 204,519.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,686.78 : 352,769.55 = 148,235.36 : x
  2. Step 2: Convert to fraction form
    255,686.78/352,769.55 = 148,235.36/x
  3. Step 3: Cross multiply
    255,686.78x = 352,769.55 × 148,235.36
  4. Step 4: Simplify right side
    255,686.78x = 52,292,922,123.21
  5. Step 5: Solve for x
    x = 52,292,922,123.21/255,686.78
  6. Step 6: Final answer
    x = 204,519.46

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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.