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Finding the Fourth Proportional to 251,329, 346,834.74 and 143,900.68

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Solution

The fourth proportional to 251,329, 346,834.74 and 143,900.68 is: 198,583.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,329 : 346,834.74 = 143,900.68 : x
  2. Step 2: Convert to fraction form
    251,329/346,834.74 = 143,900.68/x
  3. Step 3: Cross multiply
    251,329x = 346,834.74 × 143,900.68
  4. Step 4: Simplify right side
    251,329x = 49,909,754,933.62
  5. Step 5: Solve for x
    x = 49,909,754,933.62/251,329
  6. Step 6: Final answer
    x = 198,583.35

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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.