Home / 331,928.17-458,058.78-188,688.21

Finding the Fourth Proportional to 331,928.17, 458,058.78 and 188,688.21

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Solution

The fourth proportional to 331,928.17, 458,058.78 and 188,688.21 is: 260,388.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,928.17 : 458,058.78 = 188,688.21 : x
  2. Step 2: Convert to fraction form
    331,928.17/458,058.78 = 188,688.21/x
  3. Step 3: Cross multiply
    331,928.17x = 458,058.78 × 188,688.21
  4. Step 4: Simplify right side
    331,928.17x = 86,430,290,445.54
  5. Step 5: Solve for x
    x = 86,430,290,445.54/331,928.17
  6. Step 6: Final answer
    x = 260,388.54

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1.5x scale

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.