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Finding the Fourth Proportional to 202,666.33, 279,493.56 and 121,953.70

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Solution

The fourth proportional to 202,666.33, 279,493.56 and 121,953.70 is: 168,184.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,666.33 : 279,493.56 = 121,953.70 : x
  2. Step 2: Convert to fraction form
    202,666.33/279,493.56 = 121,953.70/x
  3. Step 3: Cross multiply
    202,666.33x = 279,493.56 × 121,953.70
  4. Step 4: Simplify right side
    202,666.33x = 34,085,273,768.17
  5. Step 5: Solve for x
    x = 34,085,273,768.17/202,666.33
  6. Step 6: Final answer
    x = 168,184.20

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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.