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Finding the Fourth Proportional to 401,600.52, 554,205.44 and 217,838.63

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Solution

The fourth proportional to 401,600.52, 554,205.44 and 217,838.63 is: 300,615.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,600.52 : 554,205.44 = 217,838.63 : x
  2. Step 2: Convert to fraction form
    401,600.52/554,205.44 = 217,838.63/x
  3. Step 3: Cross multiply
    401,600.52x = 554,205.44 × 217,838.63
  4. Step 4: Simplify right side
    401,600.52x = 120,727,357,346.79
  5. Step 5: Solve for x
    x = 120,727,357,346.79/401,600.52
  6. Step 6: Final answer
    x = 300,615.54

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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.