Home / 202,899.28-280,090.69-121,256.34

Finding the Fourth Proportional to 202,899.28, 280,090.69 and 121,256.34

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Solution

The fourth proportional to 202,899.28, 280,090.69 and 121,256.34 is: 167,387.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,899.28 : 280,090.69 = 121,256.34 : x
  2. Step 2: Convert to fraction form
    202,899.28/280,090.69 = 121,256.34/x
  3. Step 3: Cross multiply
    202,899.28x = 280,090.69 × 121,256.34
  4. Step 4: Simplify right side
    202,899.28x = 33,962,771,937.47
  5. Step 5: Solve for x
    x = 33,962,771,937.47/202,899.28
  6. Step 6: Final answer
    x = 167,387.35

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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.