Home / 402,128.96-554,936.50-220,852.62

Finding the Fourth Proportional to 402,128.96, 554,936.50 and 220,852.62

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Solution

The fourth proportional to 402,128.96, 554,936.50 and 220,852.62 is: 304,775.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,128.96 : 554,936.50 = 220,852.62 : x
  2. Step 2: Convert to fraction form
    402,128.96/554,936.50 = 220,852.62/x
  3. Step 3: Cross multiply
    402,128.96x = 554,936.50 × 220,852.62
  4. Step 4: Simplify right side
    402,128.96x = 122,559,179,958.63
  5. Step 5: Solve for x
    x = 122,559,179,958.63/402,128.96
  6. Step 6: Final answer
    x = 304,775.81

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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.