Home / 403,165.28-556,181.88-259,971.20

Finding the Fourth Proportional to 403,165.28, 556,181.88 and 259,971.20

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Solution

The fourth proportional to 403,165.28, 556,181.88 and 259,971.20 is: 358,640.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,165.28 : 556,181.88 = 259,971.20 : x
  2. Step 2: Convert to fraction form
    403,165.28/556,181.88 = 259,971.20/x
  3. Step 3: Cross multiply
    403,165.28x = 556,181.88 × 259,971.20
  4. Step 4: Simplify right side
    403,165.28x = 144,591,270,761.86
  5. Step 5: Solve for x
    x = 144,591,270,761.86/403,165.28
  6. Step 6: Final answer
    x = 358,640.19

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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.