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Finding the Fourth Proportional to 255,304.41, 352,313.72 and 140,582.15

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Solution

The fourth proportional to 255,304.41, 352,313.72 and 140,582.15 is: 193,999.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,304.41 : 352,313.72 = 140,582.15 : x
  2. Step 2: Convert to fraction form
    255,304.41/352,313.72 = 140,582.15/x
  3. Step 3: Cross multiply
    255,304.41x = 352,313.72 × 140,582.15
  4. Step 4: Simplify right side
    255,304.41x = 49,529,019,615.98
  5. Step 5: Solve for x
    x = 49,529,019,615.98/255,304.41
  6. Step 6: Final answer
    x = 193,999.86

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1.5x scale

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.