Home / 260,215.28-390,454.08-102,556.88

Finding the Fourth Proportional to 260,215.28, 390,454.08 and 102,556.88

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Solution

The fourth proportional to 260,215.28, 390,454.08 and 102,556.88 is: 153,887.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,215.28 : 390,454.08 = 102,556.88 : x
  2. Step 2: Convert to fraction form
    260,215.28/390,454.08 = 102,556.88/x
  3. Step 3: Cross multiply
    260,215.28x = 390,454.08 × 102,556.88
  4. Step 4: Simplify right side
    260,215.28x = 40,043,752,228.07
  5. Step 5: Solve for x
    x = 40,043,752,228.07/260,215.28
  6. Step 6: Final answer
    x = 153,887.01

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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.