Home / 314,435.05-434,190.11-304,267.15

Finding the Fourth Proportional to 314,435.05, 434,190.11 and 304,267.15

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Solution

The fourth proportional to 314,435.05, 434,190.11 and 304,267.15 is: 420,149.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    314,435.05 : 434,190.11 = 304,267.15 : x
  2. Step 2: Convert to fraction form
    314,435.05/434,190.11 = 304,267.15/x
  3. Step 3: Cross multiply
    314,435.05x = 434,190.11 × 304,267.15
  4. Step 4: Simplify right side
    314,435.05x = 132,109,787,327.89
  5. Step 5: Solve for x
    x = 132,109,787,327.89/314,435.05
  6. Step 6: Final answer
    x = 420,149.69

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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.