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Finding the Fourth Proportional to 207,090.65, 310,180.66 and 171,144.58

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Solution

The fourth proportional to 207,090.65, 310,180.66 and 171,144.58 is: 256,340.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,090.65 : 310,180.66 = 171,144.58 : x
  2. Step 2: Convert to fraction form
    207,090.65/310,180.66 = 171,144.58/x
  3. Step 3: Cross multiply
    207,090.65x = 310,180.66 × 171,144.58
  4. Step 4: Simplify right side
    207,090.65x = 53,085,737,576.51
  5. Step 5: Solve for x
    x = 53,085,737,576.51/207,090.65
  6. Step 6: Final answer
    x = 256,340.58

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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.