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Finding the Fourth Proportional to 347,752.76, 520,952.28 and 256,401.68

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Solution

The fourth proportional to 347,752.76, 520,952.28 and 256,401.68 is: 384,103.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,752.76 : 520,952.28 = 256,401.68 : x
  2. Step 2: Convert to fraction form
    347,752.76/520,952.28 = 256,401.68/x
  3. Step 3: Cross multiply
    347,752.76x = 520,952.28 × 256,401.68
  4. Step 4: Simplify right side
    347,752.76x = 133,573,039,791.83
  5. Step 5: Solve for x
    x = 133,573,039,791.83/347,752.76
  6. Step 6: Final answer
    x = 384,103.46

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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.