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Finding the Fourth Proportional to 202,681.74, 279,662.31 and 127,196.22

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Solution

The fourth proportional to 202,681.74, 279,662.31 and 127,196.22 is: 175,506.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,681.74 : 279,662.31 = 127,196.22 : x
  2. Step 2: Convert to fraction form
    202,681.74/279,662.31 = 127,196.22/x
  3. Step 3: Cross multiply
    202,681.74x = 279,662.31 × 127,196.22
  4. Step 4: Simplify right side
    202,681.74x = 35,571,988,708.47
  5. Step 5: Solve for x
    x = 35,571,988,708.47/202,681.74
  6. Step 6: Final answer
    x = 175,506.63

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.