Home / 260,904.45-359,889-172,499.36

Finding the Fourth Proportional to 260,904.45, 359,889 and 172,499.36

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Solution

The fourth proportional to 260,904.45, 359,889 and 172,499.36 is: 237,943.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,904.45 : 359,889 = 172,499.36 : x
  2. Step 2: Convert to fraction form
    260,904.45/359,889 = 172,499.36/x
  3. Step 3: Cross multiply
    260,904.45x = 359,889 × 172,499.36
  4. Step 4: Simplify right side
    260,904.45x = 62,080,620,371.60
  5. Step 5: Solve for x
    x = 62,080,620,371.60/260,904.45
  6. Step 6: Final answer
    x = 237,943.89

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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.