Home / 260,285.24-390,393.28-73,311.32

Finding the Fourth Proportional to 260,285.24, 390,393.28 and 73,311.32

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Solution

The fourth proportional to 260,285.24, 390,393.28 and 73,311.32 is: 109,957.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,285.24 : 390,393.28 = 73,311.32 : x
  2. Step 2: Convert to fraction form
    260,285.24/390,393.28 = 73,311.32/x
  3. Step 3: Cross multiply
    260,285.24x = 390,393.28 × 73,311.32
  4. Step 4: Simplify right side
    260,285.24x = 28,620,246,675.93
  5. Step 5: Solve for x
    x = 28,620,246,675.93/260,285.24
  6. Step 6: Final answer
    x = 109,957.24

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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.