Home / 402,840.24-555,928.41-221,561.34

Finding the Fourth Proportional to 402,840.24, 555,928.41 and 221,561.34

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Solution

The fourth proportional to 402,840.24, 555,928.41 and 221,561.34 is: 305,759.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,840.24 : 555,928.41 = 221,561.34 : x
  2. Step 2: Convert to fraction form
    402,840.24/555,928.41 = 221,561.34/x
  3. Step 3: Cross multiply
    402,840.24x = 555,928.41 × 221,561.34
  4. Step 4: Simplify right side
    402,840.24x = 123,172,243,463.67
  5. Step 5: Solve for x
    x = 123,172,243,463.67/402,840.24
  6. Step 6: Final answer
    x = 305,759.53

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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.