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Finding the Fourth Proportional to 255,215.06, 352,217.12 and 147,786.98

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Solution

The fourth proportional to 255,215.06, 352,217.12 and 147,786.98 is: 203,957.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,215.06 : 352,217.12 = 147,786.98 : x
  2. Step 2: Convert to fraction form
    255,215.06/352,217.12 = 147,786.98/x
  3. Step 3: Cross multiply
    255,215.06x = 352,217.12 × 147,786.98
  4. Step 4: Simplify right side
    255,215.06x = 52,053,104,610.71
  5. Step 5: Solve for x
    x = 52,053,104,610.71/255,215.06
  6. Step 6: Final answer
    x = 203,957.81

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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.