Home / 231,746.40-347,619.60-91,486.80

Finding the Fourth Proportional to 231,746.40, 347,619.60 and 91,486.80

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Solution

The fourth proportional to 231,746.40, 347,619.60 and 91,486.80 is: 137,230.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,746.40 : 347,619.60 = 91,486.80 : x
  2. Step 2: Convert to fraction form
    231,746.40/347,619.60 = 91,486.80/x
  3. Step 3: Cross multiply
    231,746.40x = 347,619.60 × 91,486.80
  4. Step 4: Simplify right side
    231,746.40x = 31,802,604,821.28
  5. Step 5: Solve for x
    x = 31,802,604,821.28/231,746.40
  6. Step 6: Final answer
    x = 137,230.20

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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.