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Finding the Fourth Proportional to 207,988.84, 312,022.16 and 83,339.56

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Solution

The fourth proportional to 207,988.84, 312,022.16 and 83,339.56 is: 125,024.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,988.84 : 312,022.16 = 83,339.56 : x
  2. Step 2: Convert to fraction form
    207,988.84/312,022.16 = 83,339.56/x
  3. Step 3: Cross multiply
    207,988.84x = 312,022.16 × 83,339.56
  4. Step 4: Simplify right side
    207,988.84x = 26,003,789,524.65
  5. Step 5: Solve for x
    x = 26,003,789,524.65/207,988.84
  6. Step 6: Final answer
    x = 125,024.93

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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.