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Finding the Fourth Proportional to 375,384.20, 518,027.62 and 203,298.20

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Solution

The fourth proportional to 375,384.20, 518,027.62 and 203,298.20 is: 280,550.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    375,384.20 : 518,027.62 = 203,298.20 : x
  2. Step 2: Convert to fraction form
    375,384.20/518,027.62 = 203,298.20/x
  3. Step 3: Cross multiply
    375,384.20x = 518,027.62 × 203,298.20
  4. Step 4: Simplify right side
    375,384.20x = 105,314,082,696.28
  5. Step 5: Solve for x
    x = 105,314,082,696.28/375,384.20
  6. Step 6: Final answer
    x = 280,550.12

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1.5x scale

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.