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Finding the Fourth Proportional to 306,040.07, 422,308.40 and 170,065.41

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Solution

The fourth proportional to 306,040.07, 422,308.40 and 170,065.41 is: 234,675.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,040.07 : 422,308.40 = 170,065.41 : x
  2. Step 2: Convert to fraction form
    306,040.07/422,308.40 = 170,065.41/x
  3. Step 3: Cross multiply
    306,040.07x = 422,308.40 × 170,065.41
  4. Step 4: Simplify right side
    306,040.07x = 71,820,050,342.12
  5. Step 5: Solve for x
    x = 71,820,050,342.12/306,040.07
  6. Step 6: Final answer
    x = 234,675.32

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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.