Home / 207,875.10-311,812.65-204,764.70

Finding the Fourth Proportional to 207,875.10, 311,812.65 and 204,764.70

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Solution

The fourth proportional to 207,875.10, 311,812.65 and 204,764.70 is: 307,147.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,875.10 : 311,812.65 = 204,764.70 : x
  2. Step 2: Convert to fraction form
    207,875.10/311,812.65 = 204,764.70/x
  3. Step 3: Cross multiply
    207,875.10x = 311,812.65 × 204,764.70
  4. Step 4: Simplify right side
    207,875.10x = 63,848,223,733.46
  5. Step 5: Solve for x
    x = 63,848,223,733.46/207,875.10
  6. Step 6: Final answer
    x = 307,147.05

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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.