Home / 402,895.02-555,956.55-221,604.06

Finding the Fourth Proportional to 402,895.02, 555,956.55 and 221,604.06

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Solution

The fourth proportional to 402,895.02, 555,956.55 and 221,604.06 is: 305,792.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,895.02 : 555,956.55 = 221,604.06 : x
  2. Step 2: Convert to fraction form
    402,895.02/555,956.55 = 221,604.06/x
  3. Step 3: Cross multiply
    402,895.02x = 555,956.55 × 221,604.06
  4. Step 4: Simplify right side
    402,895.02x = 123,202,228,663.59
  5. Step 5: Solve for x
    x = 123,202,228,663.59/402,895.02
  6. Step 6: Final answer
    x = 305,792.38

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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.