Home / 260,118.74-390,209.37-91,604.24

Finding the Fourth Proportional to 260,118.74, 390,209.37 and 91,604.24

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Solution

The fourth proportional to 260,118.74, 390,209.37 and 91,604.24 is: 137,417.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,118.74 : 390,209.37 = 91,604.24 : x
  2. Step 2: Convert to fraction form
    260,118.74/390,209.37 = 91,604.24/x
  3. Step 3: Cross multiply
    260,118.74x = 390,209.37 × 91,604.24
  4. Step 4: Simplify right side
    260,118.74x = 35,744,831,948.45
  5. Step 5: Solve for x
    x = 35,744,831,948.45/260,118.74
  6. Step 6: Final answer
    x = 137,417.36

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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.