Home / 260,118.83-390,209.51-91,604.33

Finding the Fourth Proportional to 260,118.83, 390,209.51 and 91,604.33

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Solution

The fourth proportional to 260,118.83, 390,209.51 and 91,604.33 is: 137,417.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,118.83 : 390,209.51 = 91,604.33 : x
  2. Step 2: Convert to fraction form
    260,118.83/390,209.51 = 91,604.33/x
  3. Step 3: Cross multiply
    260,118.83x = 390,209.51 × 91,604.33
  4. Step 4: Simplify right side
    260,118.83x = 35,744,880,120.91
  5. Step 5: Solve for x
    x = 35,744,880,120.91/260,118.83
  6. Step 6: Final answer
    x = 137,417.50

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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.