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Finding the Fourth Proportional to 298,983.71, 448,477.18 and 77,367.71

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Solution

The fourth proportional to 298,983.71, 448,477.18 and 77,367.71 is: 116,051.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,983.71 : 448,477.18 = 77,367.71 : x
  2. Step 2: Convert to fraction form
    298,983.71/448,477.18 = 77,367.71/x
  3. Step 3: Cross multiply
    298,983.71x = 448,477.18 × 77,367.71
  4. Step 4: Simplify right side
    298,983.71x = 34,697,649,968.05
  5. Step 5: Solve for x
    x = 34,697,649,968.05/298,983.71
  6. Step 6: Final answer
    x = 116,051.98

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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.