Home / 203,460.30-280,778.58-112,820.09

Finding the Fourth Proportional to 203,460.30, 280,778.58 and 112,820.09

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Solution

The fourth proportional to 203,460.30, 280,778.58 and 112,820.09 is: 155,693.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,460.30 : 280,778.58 = 112,820.09 : x
  2. Step 2: Convert to fraction form
    203,460.30/280,778.58 = 112,820.09/x
  3. Step 3: Cross multiply
    203,460.30x = 280,778.58 × 112,820.09
  4. Step 4: Simplify right side
    203,460.30x = 31,677,463,261.78
  5. Step 5: Solve for x
    x = 31,677,463,261.78/203,460.30
  6. Step 6: Final answer
    x = 155,693.58

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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.