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Finding the Fourth Proportional to 212,445.72, 292,542.79 and 207,730.92

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Solution

The fourth proportional to 212,445.72, 292,542.79 and 207,730.92 is: 286,050.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,445.72 : 292,542.79 = 207,730.92 : x
  2. Step 2: Convert to fraction form
    212,445.72/292,542.79 = 207,730.92/x
  3. Step 3: Cross multiply
    212,445.72x = 292,542.79 × 207,730.92
  4. Step 4: Simplify right side
    212,445.72x = 60,770,182,906.07
  5. Step 5: Solve for x
    x = 60,770,182,906.07/212,445.72
  6. Step 6: Final answer
    x = 286,050.40

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.