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Finding the Fourth Proportional to 247,637.76, 340,425.84 and 213,056.64

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Solution

The fourth proportional to 247,637.76, 340,425.84 and 213,056.64 is: 292,887.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,637.76 : 340,425.84 = 213,056.64 : x
  2. Step 2: Convert to fraction form
    247,637.76/340,425.84 = 213,056.64/x
  3. Step 3: Cross multiply
    247,637.76x = 340,425.84 × 213,056.64
  4. Step 4: Simplify right side
    247,637.76x = 72,529,985,639.58
  5. Step 5: Solve for x
    x = 72,529,985,639.58/247,637.76
  6. Step 6: Final answer
    x = 292,887.42

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.