Home / 331,938.16-458,072.56-188,698.20

Finding the Fourth Proportional to 331,938.16, 458,072.56 and 188,698.20

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Solution

The fourth proportional to 331,938.16, 458,072.56 and 188,698.20 is: 260,402.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,938.16 : 458,072.56 = 188,698.20 : x
  2. Step 2: Convert to fraction form
    331,938.16/458,072.56 = 188,698.20/x
  3. Step 3: Cross multiply
    331,938.16x = 458,072.56 × 188,698.20
  4. Step 4: Simplify right side
    331,938.16x = 86,437,467,541.39
  5. Step 5: Solve for x
    x = 86,437,467,541.39/331,938.16
  6. Step 6: Final answer
    x = 260,402.32

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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.