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Finding the Fourth Proportional to 455,862.51, 629,058.80 and 251,911.50

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Solution

The fourth proportional to 455,862.51, 629,058.80 and 251,911.50 is: 347,620.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,862.51 : 629,058.80 = 251,911.50 : x
  2. Step 2: Convert to fraction form
    455,862.51/629,058.80 = 251,911.50/x
  3. Step 3: Cross multiply
    455,862.51x = 629,058.80 × 251,911.50
  4. Step 4: Simplify right side
    455,862.51x = 158,467,144,636.64
  5. Step 5: Solve for x
    x = 158,467,144,636.64/455,862.51
  6. Step 6: Final answer
    x = 347,620.48

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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.