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Finding the Fourth Proportional to 426,863.22, 640,319.87 and 160,626.03

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Solution

The fourth proportional to 426,863.22, 640,319.87 and 160,626.03 is: 240,948.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    426,863.22 : 640,319.87 = 160,626.03 : x
  2. Step 2: Convert to fraction form
    426,863.22/640,319.87 = 160,626.03/x
  3. Step 3: Cross multiply
    426,863.22x = 640,319.87 × 160,626.03
  4. Step 4: Simplify right side
    426,863.22x = 102,852,038,648.22
  5. Step 5: Solve for x
    x = 102,852,038,648.22/426,863.22
  6. Step 6: Final answer
    x = 240,948.47

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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.