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Finding the Fourth Proportional to 455,506.58, 628,604.10 and 251,557.16

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Solution

The fourth proportional to 455,506.58, 628,604.10 and 251,557.16 is: 347,151.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,506.58 : 628,604.10 = 251,557.16 : x
  2. Step 2: Convert to fraction form
    455,506.58/628,604.10 = 251,557.16/x
  3. Step 3: Cross multiply
    455,506.58x = 628,604.10 × 251,557.16
  4. Step 4: Simplify right side
    455,506.58x = 158,129,862,160.36
  5. Step 5: Solve for x
    x = 158,129,862,160.36/455,506.58
  6. Step 6: Final answer
    x = 347,151.65

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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.