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Finding the Fourth Proportional to 402,750.77, 555,798.06 and 221,474.39

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Solution

The fourth proportional to 402,750.77, 555,798.06 and 221,474.39 is: 305,635.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,750.77 : 555,798.06 = 221,474.39 : x
  2. Step 2: Convert to fraction form
    402,750.77/555,798.06 = 221,474.39/x
  3. Step 3: Cross multiply
    402,750.77x = 555,798.06 × 221,474.39
  4. Step 4: Simplify right side
    402,750.77x = 123,095,033,522.69
  5. Step 5: Solve for x
    x = 123,095,033,522.69/402,750.77
  6. Step 6: Final answer
    x = 305,635.75

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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.