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Finding the Fourth Proportional to 455,095.50, 628,032.06 and 253,891.50

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Solution

The fourth proportional to 455,095.50, 628,032.06 and 253,891.50 is: 350,370.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,095.50 : 628,032.06 = 253,891.50 : x
  2. Step 2: Convert to fraction form
    455,095.50/628,032.06 = 253,891.50/x
  3. Step 3: Cross multiply
    455,095.50x = 628,032.06 × 253,891.50
  4. Step 4: Simplify right side
    455,095.50x = 159,452,001,761.49
  5. Step 5: Solve for x
    x = 159,452,001,761.49/455,095.50
  6. Step 6: Final answer
    x = 350,370.42

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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.