Home / 420,973.26-631,018.83-196,148.28

Finding the Fourth Proportional to 420,973.26, 631,018.83 and 196,148.28

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Solution

The fourth proportional to 420,973.26, 631,018.83 and 196,148.28 is: 294,016.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    420,973.26 : 631,018.83 = 196,148.28 : x
  2. Step 2: Convert to fraction form
    420,973.26/631,018.83 = 196,148.28/x
  3. Step 3: Cross multiply
    420,973.26x = 631,018.83 × 196,148.28
  4. Step 4: Simplify right side
    420,973.26x = 123,773,258,152.11
  5. Step 5: Solve for x
    x = 123,773,258,152.11/420,973.26
  6. Step 6: Final answer
    x = 294,016.91

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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.