Home / 260,513.21-390,484.75-134,161.11

Finding the Fourth Proportional to 260,513.21, 390,484.75 and 134,161.11

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Solution

The fourth proportional to 260,513.21, 390,484.75 and 134,161.11 is: 201,094.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,513.21 : 390,484.75 = 134,161.11 : x
  2. Step 2: Convert to fraction form
    260,513.21/390,484.75 = 134,161.11/x
  3. Step 3: Cross multiply
    260,513.21x = 390,484.75 × 134,161.11
  4. Step 4: Simplify right side
    260,513.21x = 52,387,867,414.22
  5. Step 5: Solve for x
    x = 52,387,867,414.22/260,513.21
  6. Step 6: Final answer
    x = 201,094.86

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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.