Home / 368,145.74-552,307.48-128,224.55

Finding the Fourth Proportional to 368,145.74, 552,307.48 and 128,224.55

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Solution

The fourth proportional to 368,145.74, 552,307.48 and 128,224.55 is: 192,367.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,145.74 : 552,307.48 = 128,224.55 : x
  2. Step 2: Convert to fraction form
    368,145.74/552,307.48 = 128,224.55/x
  3. Step 3: Cross multiply
    368,145.74x = 552,307.48 × 128,224.55
  4. Step 4: Simplify right side
    368,145.74x = 70,819,379,144.84
  5. Step 5: Solve for x
    x = 70,819,379,144.84/368,145.74
  6. Step 6: Final answer
    x = 192,367.78

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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.