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Finding the Fourth Proportional to 371,464.11, 512,644.97 and 208,133.71

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Solution

The fourth proportional to 371,464.11, 512,644.97 and 208,133.71 is: 287,238.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,464.11 : 512,644.97 = 208,133.71 : x
  2. Step 2: Convert to fraction form
    371,464.11/512,644.97 = 208,133.71/x
  3. Step 3: Cross multiply
    371,464.11x = 512,644.97 × 208,133.71
  4. Step 4: Simplify right side
    371,464.11x = 106,698,697,586.91
  5. Step 5: Solve for x
    x = 106,698,697,586.91/371,464.11
  6. Step 6: Final answer
    x = 287,238.24

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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.