Home / 421,091.34-631,848.15-196,469.70

Finding the Fourth Proportional to 421,091.34, 631,848.15 and 196,469.70

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Solution

The fourth proportional to 421,091.34, 631,848.15 and 196,469.70 is: 294,803.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,091.34 : 631,848.15 = 196,469.70 : x
  2. Step 2: Convert to fraction form
    421,091.34/631,848.15 = 196,469.70/x
  3. Step 3: Cross multiply
    421,091.34x = 631,848.15 × 196,469.70
  4. Step 4: Simplify right side
    421,091.34x = 124,139,016,476.06
  5. Step 5: Solve for x
    x = 124,139,016,476.06/421,091.34
  6. Step 6: Final answer
    x = 294,803.06

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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.