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Finding the Fourth Proportional to 270,172.35, 372,813.33 and 155,420.46

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Solution

The fourth proportional to 270,172.35, 372,813.33 and 155,420.46 is: 214,466.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    270,172.35 : 372,813.33 = 155,420.46 : x
  2. Step 2: Convert to fraction form
    270,172.35/372,813.33 = 155,420.46/x
  3. Step 3: Cross multiply
    270,172.35x = 372,813.33 × 155,420.46
  4. Step 4: Simplify right side
    270,172.35x = 57,942,819,242.73
  5. Step 5: Solve for x
    x = 57,942,819,242.73/270,172.35
  6. Step 6: Final answer
    x = 214,466.13

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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.