Home / 260,515.27-390,070.26-170,334.31

Finding the Fourth Proportional to 260,515.27, 390,070.26 and 170,334.31

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Solution

The fourth proportional to 260,515.27, 390,070.26 and 170,334.31 is: 255,042.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,515.27 : 390,070.26 = 170,334.31 : x
  2. Step 2: Convert to fraction form
    260,515.27/390,070.26 = 170,334.31/x
  3. Step 3: Cross multiply
    260,515.27x = 390,070.26 × 170,334.31
  4. Step 4: Simplify right side
    260,515.27x = 66,442,348,588.62
  5. Step 5: Solve for x
    x = 66,442,348,588.62/260,515.27
  6. Step 6: Final answer
    x = 255,042.05

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1.5x scale

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.