Home / 260,203.22-390,038.97-147,645.66

Finding the Fourth Proportional to 260,203.22, 390,038.97 and 147,645.66

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Solution

The fourth proportional to 260,203.22, 390,038.97 and 147,645.66 is: 221,317.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,203.22 : 390,038.97 = 147,645.66 : x
  2. Step 2: Convert to fraction form
    260,203.22/390,038.97 = 147,645.66/x
  3. Step 3: Cross multiply
    260,203.22x = 390,038.97 × 147,645.66
  4. Step 4: Simplify right side
    260,203.22x = 57,587,561,151.37
  5. Step 5: Solve for x
    x = 57,587,561,151.37/260,203.22
  6. Step 6: Final answer
    x = 221,317.64

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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.