Home / 207,981.18-311,979.59-58,217.63

Finding the Fourth Proportional to 207,981.18, 311,979.59 and 58,217.63

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Solution

The fourth proportional to 207,981.18, 311,979.59 and 58,217.63 is: 87,328.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,981.18 : 311,979.59 = 58,217.63 : x
  2. Step 2: Convert to fraction form
    207,981.18/311,979.59 = 58,217.63/x
  3. Step 3: Cross multiply
    207,981.18x = 311,979.59 × 58,217.63
  4. Step 4: Simplify right side
    207,981.18x = 18,162,710,705.50
  5. Step 5: Solve for x
    x = 18,162,710,705.50/207,981.18
  6. Step 6: Final answer
    x = 87,328.63

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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.