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Finding the Fourth Proportional to 458,070.80, 632,138.45 and 254,121.73

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Solution

The fourth proportional to 458,070.80, 632,138.45 and 254,121.73 is: 350,688.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    458,070.80 : 632,138.45 = 254,121.73 : x
  2. Step 2: Convert to fraction form
    458,070.80/632,138.45 = 254,121.73/x
  3. Step 3: Cross multiply
    458,070.80x = 632,138.45 × 254,121.73
  4. Step 4: Simplify right side
    458,070.80x = 160,640,113,662.56
  5. Step 5: Solve for x
    x = 160,640,113,662.56/458,070.80
  6. Step 6: Final answer
    x = 350,688.40

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1.5x scale

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.