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Finding the Fourth Proportional to 455,044.67, 682,275.40 and 188,988.83

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Solution

The fourth proportional to 455,044.67, 682,275.40 and 188,988.83 is: 283,362.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,044.67 : 682,275.40 = 188,988.83 : x
  2. Step 2: Convert to fraction form
    455,044.67/682,275.40 = 188,988.83/x
  3. Step 3: Cross multiply
    455,044.67x = 682,275.40 × 188,988.83
  4. Step 4: Simplify right side
    455,044.67x = 128,942,425,699.93
  5. Step 5: Solve for x
    x = 128,942,425,699.93/455,044.67
  6. Step 6: Final answer
    x = 283,362.13

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.