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Finding the Fourth Proportional to 255,012.11, 351,895.02 and 147,588.80

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Solution

The fourth proportional to 255,012.11, 351,895.02 and 147,588.80 is: 203,659.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,012.11 : 351,895.02 = 147,588.80 : x
  2. Step 2: Convert to fraction form
    255,012.11/351,895.02 = 147,588.80/x
  3. Step 3: Cross multiply
    255,012.11x = 351,895.02 × 147,588.80
  4. Step 4: Simplify right side
    255,012.11x = 51,935,761,414.84
  5. Step 5: Solve for x
    x = 51,935,761,414.84/255,012.11
  6. Step 6: Final answer
    x = 203,659.98

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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.