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Finding the Fourth Proportional to 245,284.80, 367,927.20 and 120,868.80

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Solution

The fourth proportional to 245,284.80, 367,927.20 and 120,868.80 is: 181,303.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,284.80 : 367,927.20 = 120,868.80 : x
  2. Step 2: Convert to fraction form
    245,284.80/367,927.20 = 120,868.80/x
  3. Step 3: Cross multiply
    245,284.80x = 367,927.20 × 120,868.80
  4. Step 4: Simplify right side
    245,284.80x = 44,470,919,151.36
  5. Step 5: Solve for x
    x = 44,470,919,151.36/245,284.80
  6. Step 6: Final answer
    x = 181,303.20

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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.