Home / 309,528.36-426,061.08-271,197.54

Finding the Fourth Proportional to 309,528.36, 426,061.08 and 271,197.54

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Solution

The fourth proportional to 309,528.36, 426,061.08 and 271,197.54 is: 373,299.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    309,528.36 : 426,061.08 = 271,197.54 : x
  2. Step 2: Convert to fraction form
    309,528.36/426,061.08 = 271,197.54/x
  3. Step 3: Cross multiply
    309,528.36x = 426,061.08 × 271,197.54
  4. Step 4: Simplify right side
    309,528.36x = 115,546,716,785.74
  5. Step 5: Solve for x
    x = 115,546,716,785.74/309,528.36
  6. Step 6: Final answer
    x = 373,299.29

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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.