Home / 240,187.08-360,158.30-80,205.48

Finding the Fourth Proportional to 240,187.08, 360,158.30 and 80,205.48

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Solution

The fourth proportional to 240,187.08, 360,158.30 and 80,205.48 is: 120,267.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    240,187.08 : 360,158.30 = 80,205.48 : x
  2. Step 2: Convert to fraction form
    240,187.08/360,158.30 = 80,205.48/x
  3. Step 3: Cross multiply
    240,187.08x = 360,158.30 × 80,205.48
  4. Step 4: Simplify right side
    240,187.08x = 28,886,669,327.48
  5. Step 5: Solve for x
    x = 28,886,669,327.48/240,187.08
  6. Step 6: Final answer
    x = 120,267.37

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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.