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Finding the Fourth Proportional to 265,775.40, 398,682.30 and 88,405.80

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Solution

The fourth proportional to 265,775.40, 398,682.30 and 88,405.80 is: 132,615.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    265,775.40 : 398,682.30 = 88,405.80 : x
  2. Step 2: Convert to fraction form
    265,775.40/398,682.30 = 88,405.80/x
  3. Step 3: Cross multiply
    265,775.40x = 398,682.30 × 88,405.80
  4. Step 4: Simplify right side
    265,775.40x = 35,245,827,677.34
  5. Step 5: Solve for x
    x = 35,245,827,677.34/265,775.40
  6. Step 6: Final answer
    x = 132,615.09

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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.