Home / 260,743.60-391,040.07-118,509.64

Finding the Fourth Proportional to 260,743.60, 391,040.07 and 118,509.64

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Solution

The fourth proportional to 260,743.60, 391,040.07 and 118,509.64 is: 177,730.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,743.60 : 391,040.07 = 118,509.64 : x
  2. Step 2: Convert to fraction form
    260,743.60/391,040.07 = 118,509.64/x
  3. Step 3: Cross multiply
    260,743.60x = 391,040.07 × 118,509.64
  4. Step 4: Simplify right side
    260,743.60x = 46,342,017,921.27
  5. Step 5: Solve for x
    x = 46,342,017,921.27/260,743.60
  6. Step 6: Final answer
    x = 177,730.22

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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.