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Finding the Fourth Proportional to 375,384.58, 518,030.94 and 205,621.54

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Solution

The fourth proportional to 375,384.58, 518,030.94 and 205,621.54 is: 283,757.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    375,384.58 : 518,030.94 = 205,621.54 : x
  2. Step 2: Convert to fraction form
    375,384.58/518,030.94 = 205,621.54/x
  3. Step 3: Cross multiply
    375,384.58x = 518,030.94 × 205,621.54
  4. Step 4: Simplify right side
    375,384.58x = 106,518,319,650.45
  5. Step 5: Solve for x
    x = 106,518,319,650.45/375,384.58
  6. Step 6: Final answer
    x = 283,757.85

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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.