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Finding the Fourth Proportional to 347,671.20, 520,729.20 and 301,015.20

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Solution

The fourth proportional to 347,671.20, 520,729.20 and 301,015.20 is: 450,849.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,671.20 : 520,729.20 = 301,015.20 : x
  2. Step 2: Convert to fraction form
    347,671.20/520,729.20 = 301,015.20/x
  3. Step 3: Cross multiply
    347,671.20x = 520,729.20 × 301,015.20
  4. Step 4: Simplify right side
    347,671.20x = 156,747,404,283.84
  5. Step 5: Solve for x
    x = 156,747,404,283.84/347,671.20
  6. Step 6: Final answer
    x = 450,849.55

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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.