Home / 255,427.09-352,435.45-147,990.58

Finding the Fourth Proportional to 255,427.09, 352,435.45 and 147,990.58

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Solution

The fourth proportional to 255,427.09, 352,435.45 and 147,990.58 is: 204,195.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,427.09 : 352,435.45 = 147,990.58 : x
  2. Step 2: Convert to fraction form
    255,427.09/352,435.45 = 147,990.58/x
  3. Step 3: Cross multiply
    255,427.09x = 352,435.45 × 147,990.58
  4. Step 4: Simplify right side
    255,427.09x = 52,157,124,525.91
  5. Step 5: Solve for x
    x = 52,157,124,525.91/255,427.09
  6. Step 6: Final answer
    x = 204,195.75

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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.