Home / 260,362.08-390,546.36-82,868.40

Finding the Fourth Proportional to 260,362.08, 390,546.36 and 82,868.40

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Solution

The fourth proportional to 260,362.08, 390,546.36 and 82,868.40 is: 124,303.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,362.08 : 390,546.36 = 82,868.40 : x
  2. Step 2: Convert to fraction form
    260,362.08/390,546.36 = 82,868.40/x
  3. Step 3: Cross multiply
    260,362.08x = 390,546.36 × 82,868.40
  4. Step 4: Simplify right side
    260,362.08x = 32,363,951,979.02
  5. Step 5: Solve for x
    x = 32,363,951,979.02/260,362.08
  6. Step 6: Final answer
    x = 124,303.63

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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.