Home / 210,865.95-315,949.01-148,405.23

Finding the Fourth Proportional to 210,865.95, 315,949.01 and 148,405.23

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Solution

The fourth proportional to 210,865.95, 315,949.01 and 148,405.23 is: 222,361.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,865.95 : 315,949.01 = 148,405.23 : x
  2. Step 2: Convert to fraction form
    210,865.95/315,949.01 = 148,405.23/x
  3. Step 3: Cross multiply
    210,865.95x = 315,949.01 × 148,405.23
  4. Step 4: Simplify right side
    210,865.95x = 46,888,484,755.30
  5. Step 5: Solve for x
    x = 46,888,484,755.30/210,865.95
  6. Step 6: Final answer
    x = 222,361.57

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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.