Home / 265,335.35-398,166.19-105,383.30

Finding the Fourth Proportional to 265,335.35, 398,166.19 and 105,383.30

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Solution

The fourth proportional to 265,335.35, 398,166.19 and 105,383.30 is: 158,139.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    265,335.35 : 398,166.19 = 105,383.30 : x
  2. Step 2: Convert to fraction form
    265,335.35/398,166.19 = 105,383.30/x
  3. Step 3: Cross multiply
    265,335.35x = 398,166.19 × 105,383.30
  4. Step 4: Simplify right side
    265,335.35x = 41,960,064,532.88
  5. Step 5: Solve for x
    x = 41,960,064,532.88/265,335.35
  6. Step 6: Final answer
    x = 158,139.75

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.