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Finding the Fourth Proportional to 207,606.32, 311,252.56 and 87,700.40

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Solution

The fourth proportional to 207,606.32, 311,252.56 and 87,700.40 is: 131,484.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,606.32 : 311,252.56 = 87,700.40 : x
  2. Step 2: Convert to fraction form
    207,606.32/311,252.56 = 87,700.40/x
  3. Step 3: Cross multiply
    207,606.32x = 311,252.56 × 87,700.40
  4. Step 4: Simplify right side
    207,606.32x = 27,296,974,013.02
  5. Step 5: Solve for x
    x = 27,296,974,013.02/207,606.32
  6. Step 6: Final answer
    x = 131,484.31

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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.