Home / 203,254.29-280,467.81-112,587.66

Finding the Fourth Proportional to 203,254.29, 280,467.81 and 112,587.66

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Solution

The fourth proportional to 203,254.29, 280,467.81 and 112,587.66 is: 155,358.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,254.29 : 280,467.81 = 112,587.66 : x
  2. Step 2: Convert to fraction form
    203,254.29/280,467.81 = 112,587.66/x
  3. Step 3: Cross multiply
    203,254.29x = 280,467.81 × 112,587.66
  4. Step 4: Simplify right side
    203,254.29x = 31,577,214,433.22
  5. Step 5: Solve for x
    x = 31,577,214,433.22/203,254.29
  6. Step 6: Final answer
    x = 155,358.17

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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.