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Finding the Fourth Proportional to 455,587.32, 628,656.54 and 251,626.08

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Solution

The fourth proportional to 455,587.32, 628,656.54 and 251,626.08 is: 347,214.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,587.32 : 628,656.54 = 251,626.08 : x
  2. Step 2: Convert to fraction form
    455,587.32/628,656.54 = 251,626.08/x
  3. Step 3: Cross multiply
    455,587.32x = 628,656.54 × 251,626.08
  4. Step 4: Simplify right side
    455,587.32x = 158,186,380,826.56
  5. Step 5: Solve for x
    x = 158,186,380,826.56/455,587.32
  6. Step 6: Final answer
    x = 347,214.19

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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.