Home / 402,930.54-556,084.94-230,871.33

Finding the Fourth Proportional to 402,930.54, 556,084.94 and 230,871.33

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Solution

The fourth proportional to 402,930.54, 556,084.94 and 230,871.33 is: 318,625.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,930.54 : 556,084.94 = 230,871.33 : x
  2. Step 2: Convert to fraction form
    402,930.54/556,084.94 = 230,871.33/x
  3. Step 3: Cross multiply
    402,930.54x = 556,084.94 × 230,871.33
  4. Step 4: Simplify right side
    402,930.54x = 128,384,068,536.41
  5. Step 5: Solve for x
    x = 128,384,068,536.41/402,930.54
  6. Step 6: Final answer
    x = 318,625.81

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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.