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Finding the Fourth Proportional to 343,787.60, 474,419.52 and 190,816.88

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Solution

The fourth proportional to 343,787.60, 474,419.52 and 190,816.88 is: 263,323.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,787.60 : 474,419.52 = 190,816.88 : x
  2. Step 2: Convert to fraction form
    343,787.60/474,419.52 = 190,816.88/x
  3. Step 3: Cross multiply
    343,787.60x = 474,419.52 × 190,816.88
  4. Step 4: Simplify right side
    343,787.60x = 90,527,252,617.50
  5. Step 5: Solve for x
    x = 90,527,252,617.50/343,787.60
  6. Step 6: Final answer
    x = 263,323.20

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Why These Related Problems?

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