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Finding the Fourth Proportional to 455,209.17, 628,251.90 and 254,018.13

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Solution

The fourth proportional to 455,209.17, 628,251.90 and 254,018.13 is: 350,580.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,209.17 : 628,251.90 = 254,018.13 : x
  2. Step 2: Convert to fraction form
    455,209.17/628,251.90 = 254,018.13/x
  3. Step 3: Cross multiply
    455,209.17x = 628,251.90 × 254,018.13
  4. Step 4: Simplify right side
    455,209.17x = 159,587,368,395.60
  5. Step 5: Solve for x
    x = 159,587,368,395.60/455,209.17
  6. Step 6: Final answer
    x = 350,580.31

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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.