Home / 227,031.12-312,975.63-158,836.82

Finding the Fourth Proportional to 227,031.12, 312,975.63 and 158,836.82

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Solution

The fourth proportional to 227,031.12, 312,975.63 and 158,836.82 is: 218,965.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    227,031.12 : 312,975.63 = 158,836.82 : x
  2. Step 2: Convert to fraction form
    227,031.12/312,975.63 = 158,836.82/x
  3. Step 3: Cross multiply
    227,031.12x = 312,975.63 × 158,836.82
  4. Step 4: Simplify right side
    227,031.12x = 49,712,052,241.82
  5. Step 5: Solve for x
    x = 49,712,052,241.82/227,031.12
  6. Step 6: Final answer
    x = 218,965.81

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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.