Home / 307,973.54-421,916.60-296,460.15

Finding the Fourth Proportional to 307,973.54, 421,916.60 and 296,460.15

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Solution

The fourth proportional to 307,973.54, 421,916.60 and 296,460.15 is: 406,143.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,973.54 : 421,916.60 = 296,460.15 : x
  2. Step 2: Convert to fraction form
    307,973.54/421,916.60 = 296,460.15/x
  3. Step 3: Cross multiply
    307,973.54x = 421,916.60 × 296,460.15
  4. Step 4: Simplify right side
    307,973.54x = 125,081,458,388.15
  5. Step 5: Solve for x
    x = 125,081,458,388.15/307,973.54
  6. Step 6: Final answer
    x = 406,143.52

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.