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Finding the Fourth Proportional to 286,406.48, 395,241.04 and 159,093.92

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Solution

The fourth proportional to 286,406.48, 395,241.04 and 159,093.92 is: 219,549.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,406.48 : 395,241.04 = 159,093.92 : x
  2. Step 2: Convert to fraction form
    286,406.48/395,241.04 = 159,093.92/x
  3. Step 3: Cross multiply
    286,406.48x = 395,241.04 × 159,093.92
  4. Step 4: Simplify right side
    286,406.48x = 62,880,446,398.48
  5. Step 5: Solve for x
    x = 62,880,446,398.48/286,406.48
  6. Step 6: Final answer
    x = 219,549.66

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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.