Home / 421,101.44-631,652.16-210,527.36

Finding the Fourth Proportional to 421,101.44, 631,652.16 and 210,527.36

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Solution

The fourth proportional to 421,101.44, 631,652.16 and 210,527.36 is: 315,791.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,101.44 : 631,652.16 = 210,527.36 : x
  2. Step 2: Convert to fraction form
    421,101.44/631,652.16 = 210,527.36/x
  3. Step 3: Cross multiply
    421,101.44x = 631,652.16 × 210,527.36
  4. Step 4: Simplify right side
    421,101.44x = 132,980,061,683.10
  5. Step 5: Solve for x
    x = 132,980,061,683.10/421,101.44
  6. Step 6: Final answer
    x = 315,791.04

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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.