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Finding the Fourth Proportional to 251,326, 346,830.60 and 143,897.68

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Solution

The fourth proportional to 251,326, 346,830.60 and 143,897.68 is: 198,579.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,326 : 346,830.60 = 143,897.68 : x
  2. Step 2: Convert to fraction form
    251,326/346,830.60 = 143,897.68/x
  3. Step 3: Cross multiply
    251,326x = 346,830.60 × 143,897.68
  4. Step 4: Simplify right side
    251,326x = 49,908,118,693.01
  5. Step 5: Solve for x
    x = 49,908,118,693.01/251,326
  6. Step 6: Final answer
    x = 198,579.21

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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.