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Finding the Fourth Proportional to 202,678.74, 279,658.17 and 127,193.22

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Solution

The fourth proportional to 202,678.74, 279,658.17 and 127,193.22 is: 175,502.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,678.74 : 279,658.17 = 127,193.22 : x
  2. Step 2: Convert to fraction form
    202,678.74/279,658.17 = 127,193.22/x
  3. Step 3: Cross multiply
    202,678.74x = 279,658.17 × 127,193.22
  4. Step 4: Simplify right side
    202,678.74x = 35,570,623,141.61
  5. Step 5: Solve for x
    x = 35,570,623,141.61/202,678.74
  6. Step 6: Final answer
    x = 175,502.49

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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.