Home / 283,118.40-390,698.45-154,052.52

Finding the Fourth Proportional to 283,118.40, 390,698.45 and 154,052.52

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Solution

The fourth proportional to 283,118.40, 390,698.45 and 154,052.52 is: 212,589.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,118.40 : 390,698.45 = 154,052.52 : x
  2. Step 2: Convert to fraction form
    283,118.40/390,698.45 = 154,052.52/x
  3. Step 3: Cross multiply
    283,118.40x = 390,698.45 × 154,052.52
  4. Step 4: Simplify right side
    283,118.40x = 60,188,081,374.21
  5. Step 5: Solve for x
    x = 60,188,081,374.21/283,118.40
  6. Step 6: Final answer
    x = 212,589.79

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.