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Finding the Fourth Proportional to 315,399.06, 435,185.73 and 181,237.14

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Solution

The fourth proportional to 315,399.06, 435,185.73 and 181,237.14 is: 250,069.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,399.06 : 435,185.73 = 181,237.14 : x
  2. Step 2: Convert to fraction form
    315,399.06/435,185.73 = 181,237.14/x
  3. Step 3: Cross multiply
    315,399.06x = 435,185.73 × 181,237.14
  4. Step 4: Simplify right side
    315,399.06x = 78,871,817,074.01
  5. Step 5: Solve for x
    x = 78,871,817,074.01/315,399.06
  6. Step 6: Final answer
    x = 250,069.92

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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.