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Finding the Fourth Proportional to 225,400.98, 311,031.80 and 134,738.94

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Solution

The fourth proportional to 225,400.98, 311,031.80 and 134,738.94 is: 185,926.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,400.98 : 311,031.80 = 134,738.94 : x
  2. Step 2: Convert to fraction form
    225,400.98/311,031.80 = 134,738.94/x
  3. Step 3: Cross multiply
    225,400.98x = 311,031.80 × 134,738.94
  4. Step 4: Simplify right side
    225,400.98x = 41,908,095,038.29
  5. Step 5: Solve for x
    x = 41,908,095,038.29/225,400.98
  6. Step 6: Final answer
    x = 185,926.85

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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.