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Finding the Fourth Proportional to 402,025.88, 554,802.64 and 220,745.46

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Solution

The fourth proportional to 402,025.88, 554,802.64 and 220,745.46 is: 304,632.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,025.88 : 554,802.64 = 220,745.46 : x
  2. Step 2: Convert to fraction form
    402,025.88/554,802.64 = 220,745.46/x
  3. Step 3: Cross multiply
    402,025.88x = 554,802.64 × 220,745.46
  4. Step 4: Simplify right side
    402,025.88x = 122,470,163,976.01
  5. Step 5: Solve for x
    x = 122,470,163,976.01/402,025.88
  6. Step 6: Final answer
    x = 304,632.54

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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.