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Finding the Fourth Proportional to 202,907.04, 280,101.39 and 121,264.09

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Solution

The fourth proportional to 202,907.04, 280,101.39 and 121,264.09 is: 167,398.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,907.04 : 280,101.39 = 121,264.09 : x
  2. Step 2: Convert to fraction form
    202,907.04/280,101.39 = 121,264.09/x
  3. Step 3: Cross multiply
    202,907.04x = 280,101.39 × 121,264.09
  4. Step 4: Simplify right side
    202,907.04x = 33,966,240,166.09
  5. Step 5: Solve for x
    x = 33,966,240,166.09/202,907.04
  6. Step 6: Final answer
    x = 167,398.04

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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.