Home / 253,981.35-381,051.42-152,890.11

Finding the Fourth Proportional to 253,981.35, 381,051.42 and 152,890.11

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Solution

The fourth proportional to 253,981.35, 381,051.42 and 152,890.11 is: 229,382.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,981.35 : 381,051.42 = 152,890.11 : x
  2. Step 2: Convert to fraction form
    253,981.35/381,051.42 = 152,890.11/x
  3. Step 3: Cross multiply
    253,981.35x = 381,051.42 × 152,890.11
  4. Step 4: Simplify right side
    253,981.35x = 58,258,993,519.46
  5. Step 5: Solve for x
    x = 58,258,993,519.46/253,981.35
  6. Step 6: Final answer
    x = 229,382.96

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.