Home / 255,409.12-352,465.05-147,999.88

Finding the Fourth Proportional to 255,409.12, 352,465.05 and 147,999.88

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Solution

The fourth proportional to 255,409.12, 352,465.05 and 147,999.88 is: 204,240.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,409.12 : 352,465.05 = 147,999.88 : x
  2. Step 2: Convert to fraction form
    255,409.12/352,465.05 = 147,999.88/x
  3. Step 3: Cross multiply
    255,409.12x = 352,465.05 × 147,999.88
  4. Step 4: Simplify right side
    255,409.12x = 52,164,785,104.19
  5. Step 5: Solve for x
    x = 52,164,785,104.19/255,409.12
  6. Step 6: Final answer
    x = 204,240.10

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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.