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Finding the Fourth Proportional to 345,615.93, 477,040.19 and 225,087.93

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Solution

The fourth proportional to 345,615.93, 477,040.19 and 225,087.93 is: 310,680.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,615.93 : 477,040.19 = 225,087.93 : x
  2. Step 2: Convert to fraction form
    345,615.93/477,040.19 = 225,087.93/x
  3. Step 3: Cross multiply
    345,615.93x = 477,040.19 × 225,087.93
  4. Step 4: Simplify right side
    345,615.93x = 107,375,987,768.47
  5. Step 5: Solve for x
    x = 107,375,987,768.47/345,615.93
  6. Step 6: Final answer
    x = 310,680.09

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1.5x scale

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.