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Finding the Fourth Proportional to 155,371, 214,412.22 and 88,303

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Solution

The fourth proportional to 155,371, 214,412.22 and 88,303 is: 121,858.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,371 : 214,412.22 = 88,303 : x
  2. Step 2: Convert to fraction form
    155,371/214,412.22 = 88,303/x
  3. Step 3: Cross multiply
    155,371x = 214,412.22 × 88,303
  4. Step 4: Simplify right side
    155,371x = 18,933,242,262.66
  5. Step 5: Solve for x
    x = 18,933,242,262.66/155,371
  6. Step 6: Final answer
    x = 121,858.28

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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.