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Finding the Fourth Proportional to 259,486.86, 358,090.83 and 140,254.86

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Solution

The fourth proportional to 259,486.86, 358,090.83 and 140,254.86 is: 193,551.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,486.86 : 358,090.83 = 140,254.86 : x
  2. Step 2: Convert to fraction form
    259,486.86/358,090.83 = 140,254.86/x
  3. Step 3: Cross multiply
    259,486.86x = 358,090.83 × 140,254.86
  4. Step 4: Simplify right side
    259,486.86x = 50,223,979,228.93
  5. Step 5: Solve for x
    x = 50,223,979,228.93/259,486.86
  6. Step 6: Final answer
    x = 193,551.15

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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.