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Finding the Fourth Proportional to 407,639.44, 611,498.04 and 158,340.88

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Solution

The fourth proportional to 407,639.44, 611,498.04 and 158,340.88 is: 237,526.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    407,639.44 : 611,498.04 = 158,340.88 : x
  2. Step 2: Convert to fraction form
    407,639.44/611,498.04 = 158,340.88/x
  3. Step 3: Cross multiply
    407,639.44x = 611,498.04 × 158,340.88
  4. Step 4: Simplify right side
    407,639.44x = 96,825,137,771.88
  5. Step 5: Solve for x
    x = 96,825,137,771.88/407,639.44
  6. Step 6: Final answer
    x = 237,526.42

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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.