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Finding the Fourth Proportional to 306,841.36, 423,339.60 and 179,426.76

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Solution

The fourth proportional to 306,841.36, 423,339.60 and 179,426.76 is: 247,549.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,841.36 : 423,339.60 = 179,426.76 : x
  2. Step 2: Convert to fraction form
    306,841.36/423,339.60 = 179,426.76/x
  3. Step 3: Cross multiply
    306,841.36x = 423,339.60 × 179,426.76
  4. Step 4: Simplify right side
    306,841.36x = 75,958,452,807.70
  5. Step 5: Solve for x
    x = 75,958,452,807.70/306,841.36
  6. Step 6: Final answer
    x = 247,549.59

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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.