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Finding the Fourth Proportional to 472,539.60, 708,906.60 and 157,222.80

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Solution

The fourth proportional to 472,539.60, 708,906.60 and 157,222.80 is: 235,866.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,539.60 : 708,906.60 = 157,222.80 : x
  2. Step 2: Convert to fraction form
    472,539.60/708,906.60 = 157,222.80/x
  3. Step 3: Cross multiply
    472,539.60x = 708,906.60 × 157,222.80
  4. Step 4: Simplify right side
    472,539.60x = 111,456,280,590.48
  5. Step 5: Solve for x
    x = 111,456,280,590.48/472,539.60
  6. Step 6: Final answer
    x = 235,866.54

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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.