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Finding the Fourth Proportional to 608,406.72, 912,540.36 and 159,170.94

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Solution

The fourth proportional to 608,406.72, 912,540.36 and 159,170.94 is: 238,738.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    608,406.72 : 912,540.36 = 159,170.94 : x
  2. Step 2: Convert to fraction form
    608,406.72/912,540.36 = 159,170.94/x
  3. Step 3: Cross multiply
    608,406.72x = 912,540.36 × 159,170.94
  4. Step 4: Simplify right side
    608,406.72x = 145,249,906,889.14
  5. Step 5: Solve for x
    x = 145,249,906,889.14/608,406.72
  6. Step 6: Final answer
    x = 238,738.17

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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.