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Finding the Fourth Proportional to 255,300.21, 352,323.92 and 140,583.87

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Solution

The fourth proportional to 255,300.21, 352,323.92 and 140,583.87 is: 194,011.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,300.21 : 352,323.92 = 140,583.87 : x
  2. Step 2: Convert to fraction form
    255,300.21/352,323.92 = 140,583.87/x
  3. Step 3: Cross multiply
    255,300.21x = 352,323.92 × 140,583.87
  4. Step 4: Simplify right side
    255,300.21x = 49,531,060,518.63
  5. Step 5: Solve for x
    x = 49,531,060,518.63/255,300.21
  6. Step 6: Final answer
    x = 194,011.04

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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.