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Finding the Fourth Proportional to 384,780.66, 577,170.99 and 104,297.91

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Solution

The fourth proportional to 384,780.66, 577,170.99 and 104,297.91 is: 156,446.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,780.66 : 577,170.99 = 104,297.91 : x
  2. Step 2: Convert to fraction form
    384,780.66/577,170.99 = 104,297.91/x
  3. Step 3: Cross multiply
    384,780.66x = 577,170.99 × 104,297.91
  4. Step 4: Simplify right side
    384,780.66x = 60,197,727,969.63
  5. Step 5: Solve for x
    x = 60,197,727,969.63/384,780.66
  6. Step 6: Final answer
    x = 156,446.87

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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.