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Finding the Fourth Proportional to 218,130.83, 300,897.62 and 130,893.37

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Solution

The fourth proportional to 218,130.83, 300,897.62 and 130,893.37 is: 180,559.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,130.83 : 300,897.62 = 130,893.37 : x
  2. Step 2: Convert to fraction form
    218,130.83/300,897.62 = 130,893.37/x
  3. Step 3: Cross multiply
    218,130.83x = 300,897.62 × 130,893.37
  4. Step 4: Simplify right side
    218,130.83x = 39,385,504,283.47
  5. Step 5: Solve for x
    x = 39,385,504,283.47/218,130.83
  6. Step 6: Final answer
    x = 180,559.09

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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.