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Finding the Fourth Proportional to 226,312.96, 312,326.40 and 130,843.12

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Solution

The fourth proportional to 226,312.96, 312,326.40 and 130,843.12 is: 180,571.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    226,312.96 : 312,326.40 = 130,843.12 : x
  2. Step 2: Convert to fraction form
    226,312.96/312,326.40 = 130,843.12/x
  3. Step 3: Cross multiply
    226,312.96x = 312,326.40 × 130,843.12
  4. Step 4: Simplify right side
    226,312.96x = 40,865,760,634.37
  5. Step 5: Solve for x
    x = 40,865,760,634.37/226,312.96
  6. Step 6: Final answer
    x = 180,571.90

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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.