Home / 402,327.03-555,215.08-221,042.73

Finding the Fourth Proportional to 402,327.03, 555,215.08 and 221,042.73

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Solution

The fourth proportional to 402,327.03, 555,215.08 and 221,042.73 is: 305,041.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,327.03 : 555,215.08 = 221,042.73 : x
  2. Step 2: Convert to fraction form
    402,327.03/555,215.08 = 221,042.73/x
  3. Step 3: Cross multiply
    402,327.03x = 555,215.08 × 221,042.73
  4. Step 4: Simplify right side
    402,327.03x = 122,726,257,020.37
  5. Step 5: Solve for x
    x = 122,726,257,020.37/402,327.03
  6. Step 6: Final answer
    x = 305,041.04

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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.