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Finding the Fourth Proportional to 207,615.65, 311,312.72 and 107,527.59

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Solution

The fourth proportional to 207,615.65, 311,312.72 and 107,527.59 is: 161,234.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,615.65 : 311,312.72 = 107,527.59 : x
  2. Step 2: Convert to fraction form
    207,615.65/311,312.72 = 107,527.59/x
  3. Step 3: Cross multiply
    207,615.65x = 311,312.72 × 107,527.59
  4. Step 4: Simplify right side
    207,615.65x = 33,474,705,980.31
  5. Step 5: Solve for x
    x = 33,474,705,980.31/207,615.65
  6. Step 6: Final answer
    x = 161,234.02

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1.5x scale

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.