Home / 405,445.05-608,604.98-228,298.05

Finding the Fourth Proportional to 405,445.05, 608,604.98 and 228,298.05

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Solution

The fourth proportional to 405,445.05, 608,604.98 and 228,298.05 is: 342,693.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    405,445.05 : 608,604.98 = 228,298.05 : x
  2. Step 2: Convert to fraction form
    405,445.05/608,604.98 = 228,298.05/x
  3. Step 3: Cross multiply
    405,445.05x = 608,604.98 × 228,298.05
  4. Step 4: Simplify right side
    405,445.05x = 138,943,329,012.80
  5. Step 5: Solve for x
    x = 138,943,329,012.80/405,445.05
  6. Step 6: Final answer
    x = 342,693.37

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.