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Finding the Fourth Proportional to 401,601.52, 554,206.82 and 217,839.63

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Solution

The fourth proportional to 401,601.52, 554,206.82 and 217,839.63 is: 300,616.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,601.52 : 554,206.82 = 217,839.63 : x
  2. Step 2: Convert to fraction form
    401,601.52/554,206.82 = 217,839.63/x
  3. Step 3: Cross multiply
    401,601.52x = 554,206.82 × 217,839.63
  4. Step 4: Simplify right side
    401,601.52x = 120,728,208,612.28
  5. Step 5: Solve for x
    x = 120,728,208,612.28/401,601.52
  6. Step 6: Final answer
    x = 300,616.91

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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.