Home / 260,282.43-390,157.76-147,724.83

Finding the Fourth Proportional to 260,282.43, 390,157.76 and 147,724.83

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Solution

The fourth proportional to 260,282.43, 390,157.76 and 147,724.83 is: 221,436.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,282.43 : 390,157.76 = 147,724.83 : x
  2. Step 2: Convert to fraction form
    260,282.43/390,157.76 = 147,724.83/x
  3. Step 3: Cross multiply
    260,282.43x = 390,157.76 × 147,724.83
  4. Step 4: Simplify right side
    260,282.43x = 57,635,989,138.49
  5. Step 5: Solve for x
    x = 57,635,989,138.49/260,282.43
  6. Step 6: Final answer
    x = 221,436.34

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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.