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Finding the Fourth Proportional to 445,459.92, 668,023.68 and 179,130.72

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Solution

The fourth proportional to 445,459.92, 668,023.68 and 179,130.72 is: 268,629.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,459.92 : 668,023.68 = 179,130.72 : x
  2. Step 2: Convert to fraction form
    445,459.92/668,023.68 = 179,130.72/x
  3. Step 3: Cross multiply
    445,459.92x = 668,023.68 × 179,130.72
  4. Step 4: Simplify right side
    445,459.92x = 119,663,562,775.45
  5. Step 5: Solve for x
    x = 119,663,562,775.45/445,459.92
  6. Step 6: Final answer
    x = 268,629.25

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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.