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Finding the Fourth Proportional to 247,302.62, 341,241.71 and 138,406.42

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Solution

The fourth proportional to 247,302.62, 341,241.71 and 138,406.42 is: 190,980.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,302.62 : 341,241.71 = 138,406.42 : x
  2. Step 2: Convert to fraction form
    247,302.62/341,241.71 = 138,406.42/x
  3. Step 3: Cross multiply
    247,302.62x = 341,241.71 × 138,406.42
  4. Step 4: Simplify right side
    247,302.62x = 47,230,043,948.83
  5. Step 5: Solve for x
    x = 47,230,043,948.83/247,302.62
  6. Step 6: Final answer
    x = 190,980.77

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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.