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Finding the Fourth Proportional to 243,641.42, 363,677.61 and 214,879.64

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Solution

The fourth proportional to 243,641.42, 363,677.61 and 214,879.64 is: 320,745.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,641.42 : 363,677.61 = 214,879.64 : x
  2. Step 2: Convert to fraction form
    243,641.42/363,677.61 = 214,879.64/x
  3. Step 3: Cross multiply
    243,641.42x = 363,677.61 × 214,879.64
  4. Step 4: Simplify right side
    243,641.42x = 78,146,914,408.76
  5. Step 5: Solve for x
    x = 78,146,914,408.76/243,641.42
  6. Step 6: Final answer
    x = 320,745.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.