Home / 203,197.17-280,421.33-112,553.13

Finding the Fourth Proportional to 203,197.17, 280,421.33 and 112,553.13

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Solution

The fourth proportional to 203,197.17, 280,421.33 and 112,553.13 is: 155,328.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,197.17 : 280,421.33 = 112,553.13 : x
  2. Step 2: Convert to fraction form
    203,197.17/280,421.33 = 112,553.13/x
  3. Step 3: Cross multiply
    203,197.17x = 280,421.33 × 112,553.13
  4. Step 4: Simplify right side
    203,197.17x = 31,562,298,410.26
  5. Step 5: Solve for x
    x = 31,562,298,410.26/203,197.17
  6. Step 6: Final answer
    x = 155,328.43

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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.