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Finding the Fourth Proportional to 306,058.80, 458,636.20 and 148,099.12

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Solution

The fourth proportional to 306,058.80, 458,636.20 and 148,099.12 is: 221,929.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,058.80 : 458,636.20 = 148,099.12 : x
  2. Step 2: Convert to fraction form
    306,058.80/458,636.20 = 148,099.12/x
  3. Step 3: Cross multiply
    306,058.80x = 458,636.20 × 148,099.12
  4. Step 4: Simplify right side
    306,058.80x = 67,923,617,620.14
  5. Step 5: Solve for x
    x = 67,923,617,620.14/306,058.80
  6. Step 6: Final answer
    x = 221,929.96

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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.