Home / 455,220.26-628,200.49-251,271.16

Finding the Fourth Proportional to 455,220.26, 628,200.49 and 251,271.16

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Solution

The fourth proportional to 455,220.26, 628,200.49 and 251,271.16 is: 346,752.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,220.26 : 628,200.49 = 251,271.16 : x
  2. Step 2: Convert to fraction form
    455,220.26/628,200.49 = 251,271.16/x
  3. Step 3: Cross multiply
    455,220.26x = 628,200.49 × 251,271.16
  4. Step 4: Simplify right side
    455,220.26x = 157,848,665,834.87
  5. Step 5: Solve for x
    x = 157,848,665,834.87/455,220.26
  6. Step 6: Final answer
    x = 346,752.29

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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.