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Finding the Fourth Proportional to 309,301.85, 426,829.58 and 180,232.26

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Solution

The fourth proportional to 309,301.85, 426,829.58 and 180,232.26 is: 248,716.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    309,301.85 : 426,829.58 = 180,232.26 : x
  2. Step 2: Convert to fraction form
    309,301.85/426,829.58 = 180,232.26/x
  3. Step 3: Cross multiply
    309,301.85x = 426,829.58 × 180,232.26
  4. Step 4: Simplify right side
    309,301.85x = 76,928,458,012.35
  5. Step 5: Solve for x
    x = 76,928,458,012.35/309,301.85
  6. Step 6: Final answer
    x = 248,716.45

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1.5x scale

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.