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Finding the Fourth Proportional to 455,530.80, 683,296.20 and 202,810.80

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Solution

The fourth proportional to 455,530.80, 683,296.20 and 202,810.80 is: 304,216.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,530.80 : 683,296.20 = 202,810.80 : x
  2. Step 2: Convert to fraction form
    455,530.80/683,296.20 = 202,810.80/x
  3. Step 3: Cross multiply
    455,530.80x = 683,296.20 × 202,810.80
  4. Step 4: Simplify right side
    455,530.80x = 138,579,848,958.96
  5. Step 5: Solve for x
    x = 138,579,848,958.96/455,530.80
  6. Step 6: Final answer
    x = 304,216.20

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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.