Home / 260,014.90-390,022.35-220,156.83

Finding the Fourth Proportional to 260,014.90, 390,022.35 and 220,156.83

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Solution

The fourth proportional to 260,014.90, 390,022.35 and 220,156.83 is: 330,235.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,014.90 : 390,022.35 = 220,156.83 : x
  2. Step 2: Convert to fraction form
    260,014.90/390,022.35 = 220,156.83/x
  3. Step 3: Cross multiply
    260,014.90x = 390,022.35 × 220,156.83
  4. Step 4: Simplify right side
    260,014.90x = 85,866,082,255.04
  5. Step 5: Solve for x
    x = 85,866,082,255.04/260,014.90
  6. Step 6: Final answer
    x = 330,235.24

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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.