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Finding the Fourth Proportional to 257,474.64, 355,329.58 and 144,304.68

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Solution

The fourth proportional to 257,474.64, 355,329.58 and 144,304.68 is: 199,148.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,474.64 : 355,329.58 = 144,304.68 : x
  2. Step 2: Convert to fraction form
    257,474.64/355,329.58 = 144,304.68/x
  3. Step 3: Cross multiply
    257,474.64x = 355,329.58 × 144,304.68
  4. Step 4: Simplify right side
    257,474.64x = 51,275,721,336.43
  5. Step 5: Solve for x
    x = 51,275,721,336.43/257,474.64
  6. Step 6: Final answer
    x = 199,148.63

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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.