Home / 390,819.88-585,823.37-151,098.42

Finding the Fourth Proportional to 390,819.88, 585,823.37 and 151,098.42

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Solution

The fourth proportional to 390,819.88, 585,823.37 and 151,098.42 is: 226,490.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    390,819.88 : 585,823.37 = 151,098.42 : x
  2. Step 2: Convert to fraction form
    390,819.88/585,823.37 = 151,098.42/x
  3. Step 3: Cross multiply
    390,819.88x = 585,823.37 × 151,098.42
  4. Step 4: Simplify right side
    390,819.88x = 88,516,988,180.66
  5. Step 5: Solve for x
    x = 88,516,988,180.66/390,819.88
  6. Step 6: Final answer
    x = 226,490.49

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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.