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Finding the Fourth Proportional to 401,498.75, 554,088.57 and 220,227.54

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Solution

The fourth proportional to 401,498.75, 554,088.57 and 220,227.54 is: 303,925.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,498.75 : 554,088.57 = 220,227.54 : x
  2. Step 2: Convert to fraction form
    401,498.75/554,088.57 = 220,227.54/x
  3. Step 3: Cross multiply
    401,498.75x = 554,088.57 × 220,227.54
  4. Step 4: Simplify right side
    401,498.75x = 122,025,562,713.22
  5. Step 5: Solve for x
    x = 122,025,562,713.22/401,498.75
  6. Step 6: Final answer
    x = 303,925.14

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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.