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Finding the Fourth Proportional to 243,608.86, 365,409.26 and 72,830.97

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Solution

The fourth proportional to 243,608.86, 365,409.26 and 72,830.97 is: 109,245.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,608.86 : 365,409.26 = 72,830.97 : x
  2. Step 2: Convert to fraction form
    243,608.86/365,409.26 = 72,830.97/x
  3. Step 3: Cross multiply
    243,608.86x = 365,409.26 × 72,830.97
  4. Step 4: Simplify right side
    243,608.86x = 26,613,108,661.58
  5. Step 5: Solve for x
    x = 26,613,108,661.58/243,608.86
  6. Step 6: Final answer
    x = 109,245.24

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1.5x scale

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.