Home / 455,309.10-628,327.60-251,360.16

Finding the Fourth Proportional to 455,309.10, 628,327.60 and 251,360.16

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Solution

The fourth proportional to 455,309.10, 628,327.60 and 251,360.16 is: 346,877.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,309.10 : 628,327.60 = 251,360.16 : x
  2. Step 2: Convert to fraction form
    455,309.10/628,327.60 = 251,360.16/x
  3. Step 3: Cross multiply
    455,309.10x = 628,327.60 × 251,360.16
  4. Step 4: Simplify right side
    455,309.10x = 157,936,526,068.42
  5. Step 5: Solve for x
    x = 157,936,526,068.42/455,309.10
  6. Step 6: Final answer
    x = 346,877.60

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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.