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Finding the Fourth Proportional to 270,369.06, 405,672.14 and 128,316.93

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Solution

The fourth proportional to 270,369.06, 405,672.14 and 128,316.93 is: 192,531.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    270,369.06 : 405,672.14 = 128,316.93 : x
  2. Step 2: Convert to fraction form
    270,369.06/405,672.14 = 128,316.93/x
  3. Step 3: Cross multiply
    270,369.06x = 405,672.14 × 128,316.93
  4. Step 4: Simplify right side
    270,369.06x = 52,054,603,591.33
  5. Step 5: Solve for x
    x = 52,054,603,591.33/270,369.06
  6. Step 6: Final answer
    x = 192,531.66

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1.5x scale

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.