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Finding the Fourth Proportional to 255,046.48, 351,966.84 and 140,326.64

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Solution

The fourth proportional to 255,046.48, 351,966.84 and 140,326.64 is: 193,652.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,046.48 : 351,966.84 = 140,326.64 : x
  2. Step 2: Convert to fraction form
    255,046.48/351,966.84 = 140,326.64/x
  3. Step 3: Cross multiply
    255,046.48x = 351,966.84 × 140,326.64
  4. Step 4: Simplify right side
    255,046.48x = 49,390,321,762.56
  5. Step 5: Solve for x
    x = 49,390,321,762.56/255,046.48
  6. Step 6: Final answer
    x = 193,652.24

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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.