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Finding the Fourth Proportional to 455,301.95, 628,319.06 and 251,349.14

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Solution

The fourth proportional to 455,301.95, 628,319.06 and 251,349.14 is: 346,863.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,301.95 : 628,319.06 = 251,349.14 : x
  2. Step 2: Convert to fraction form
    455,301.95/628,319.06 = 251,349.14/x
  3. Step 3: Cross multiply
    455,301.95x = 628,319.06 × 251,349.14
  4. Step 4: Simplify right side
    455,301.95x = 157,927,456,633.22
  5. Step 5: Solve for x
    x = 157,927,456,633.22/455,301.95
  6. Step 6: Final answer
    x = 346,863.13

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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.