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Finding the Fourth Proportional to 348,575.40, 522,960.30 and 148,991.40

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Solution

The fourth proportional to 348,575.40, 522,960.30 and 148,991.40 is: 223,528.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    348,575.40 : 522,960.30 = 148,991.40 : x
  2. Step 2: Convert to fraction form
    348,575.40/522,960.30 = 148,991.40/x
  3. Step 3: Cross multiply
    348,575.40x = 522,960.30 × 148,991.40
  4. Step 4: Simplify right side
    348,575.40x = 77,916,587,241.42
  5. Step 5: Solve for x
    x = 77,916,587,241.42/348,575.40
  6. Step 6: Final answer
    x = 223,528.65

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.