Home / 402,728.27-555,767.08-221,451.93

Finding the Fourth Proportional to 402,728.27, 555,767.08 and 221,451.93

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Solution

The fourth proportional to 402,728.27, 555,767.08 and 221,451.93 is: 305,604.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,728.27 : 555,767.08 = 221,451.93 : x
  2. Step 2: Convert to fraction form
    402,728.27/555,767.08 = 221,451.93/x
  3. Step 3: Cross multiply
    402,728.27x = 555,767.08 × 221,451.93
  4. Step 4: Simplify right side
    402,728.27x = 123,075,691,942.84
  5. Step 5: Solve for x
    x = 123,075,691,942.84/402,728.27
  6. Step 6: Final answer
    x = 305,604.80

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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.