Home / 283,018.52-390,621.38-162,240.84

Finding the Fourth Proportional to 283,018.52, 390,621.38 and 162,240.84

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Solution

The fourth proportional to 283,018.52, 390,621.38 and 162,240.84 is: 223,924.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,018.52 : 390,621.38 = 162,240.84 : x
  2. Step 2: Convert to fraction form
    283,018.52/390,621.38 = 162,240.84/x
  3. Step 3: Cross multiply
    283,018.52x = 390,621.38 × 162,240.84
  4. Step 4: Simplify right side
    283,018.52x = 63,374,740,813.16
  5. Step 5: Solve for x
    x = 63,374,740,813.16/283,018.52
  6. Step 6: Final answer
    x = 223,924.36

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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.