Home / 283,201.08-390,824.91-154,148.10

Finding the Fourth Proportional to 283,201.08, 390,824.91 and 154,148.10

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Solution

The fourth proportional to 283,201.08, 390,824.91 and 154,148.10 is: 212,728.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,201.08 : 390,824.91 = 154,148.10 : x
  2. Step 2: Convert to fraction form
    283,201.08/390,824.91 = 154,148.10/x
  3. Step 3: Cross multiply
    283,201.08x = 390,824.91 × 154,148.10
  4. Step 4: Simplify right side
    283,201.08x = 60,244,917,309.17
  5. Step 5: Solve for x
    x = 60,244,917,309.17/283,201.08
  6. Step 6: Final answer
    x = 212,728.42

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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.