Home / 309,629.60-464,881.80-191,531.60

Finding the Fourth Proportional to 309,629.60, 464,881.80 and 191,531.60

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Solution

The fourth proportional to 309,629.60, 464,881.80 and 191,531.60 is: 287,567.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    309,629.60 : 464,881.80 = 191,531.60 : x
  2. Step 2: Convert to fraction form
    309,629.60/464,881.80 = 191,531.60/x
  3. Step 3: Cross multiply
    309,629.60x = 464,881.80 × 191,531.60
  4. Step 4: Simplify right side
    309,629.60x = 89,039,554,964.88
  5. Step 5: Solve for x
    x = 89,039,554,964.88/309,629.60
  6. Step 6: Final answer
    x = 287,567.97

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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.