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Finding the Fourth Proportional to 306,882.36, 423,481.16 and 169,056.76

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Solution

The fourth proportional to 306,882.36, 423,481.16 and 169,056.76 is: 233,289.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,882.36 : 423,481.16 = 169,056.76 : x
  2. Step 2: Convert to fraction form
    306,882.36/423,481.16 = 169,056.76/x
  3. Step 3: Cross multiply
    306,882.36x = 423,481.16 × 169,056.76
  4. Step 4: Simplify right side
    306,882.36x = 71,592,352,830.64
  5. Step 5: Solve for x
    x = 71,592,352,830.64/306,882.36
  6. Step 6: Final answer
    x = 233,289.24

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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.