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Finding the Fourth Proportional to 375,382.20, 518,024.86 and 203,296.20

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Solution

The fourth proportional to 375,382.20, 518,024.86 and 203,296.20 is: 280,547.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    375,382.20 : 518,024.86 = 203,296.20 : x
  2. Step 2: Convert to fraction form
    375,382.20/518,024.86 = 203,296.20/x
  3. Step 3: Cross multiply
    375,382.20x = 518,024.86 × 203,296.20
  4. Step 4: Simplify right side
    375,382.20x = 105,312,488,035.30
  5. Step 5: Solve for x
    x = 105,312,488,035.30/375,382.20
  6. Step 6: Final answer
    x = 280,547.37

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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.