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Finding the Fourth Proportional to 226,038.76, 311,990.82 and 154,447.72

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Solution

The fourth proportional to 226,038.76, 311,990.82 and 154,447.72 is: 213,177.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    226,038.76 : 311,990.82 = 154,447.72 : x
  2. Step 2: Convert to fraction form
    226,038.76/311,990.82 = 154,447.72/x
  3. Step 3: Cross multiply
    226,038.76x = 311,990.82 × 154,447.72
  4. Step 4: Simplify right side
    226,038.76x = 48,186,270,809.93
  5. Step 5: Solve for x
    x = 48,186,270,809.93/226,038.76
  6. Step 6: Final answer
    x = 213,177.03

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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.