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Finding the Fourth Proportional to 315,395.06, 435,180.21 and 181,233.14

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Solution

The fourth proportional to 315,395.06, 435,180.21 and 181,233.14 is: 250,064.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,395.06 : 435,180.21 = 181,233.14 : x
  2. Step 2: Convert to fraction form
    315,395.06/435,180.21 = 181,233.14/x
  3. Step 3: Cross multiply
    315,395.06x = 435,180.21 × 181,233.14
  4. Step 4: Simplify right side
    315,395.06x = 78,869,075,924.16
  5. Step 5: Solve for x
    x = 78,869,075,924.16/315,395.06
  6. Step 6: Final answer
    x = 250,064.40

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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.