Home / 260,282.20-390,226.98-142,054.36

Finding the Fourth Proportional to 260,282.20, 390,226.98 and 142,054.36

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Solution

The fourth proportional to 260,282.20, 390,226.98 and 142,054.36 is: 212,974.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,282.20 : 390,226.98 = 142,054.36 : x
  2. Step 2: Convert to fraction form
    260,282.20/390,226.98 = 142,054.36/x
  3. Step 3: Cross multiply
    260,282.20x = 390,226.98 × 142,054.36
  4. Step 4: Simplify right side
    260,282.20x = 55,433,443,898.63
  5. Step 5: Solve for x
    x = 55,433,443,898.63/260,282.20
  6. Step 6: Final answer
    x = 212,974.39

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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.