Home / 807,153.12-1,210,799.27-208,109.21

Finding the Fourth Proportional to 807,153.12, 1,210,799.27 and 208,109.21

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Solution

The fourth proportional to 807,153.12, 1,210,799.27 and 208,109.21 is: 312,181.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    807,153.12 : 1,210,799.27 = 208,109.21 : x
  2. Step 2: Convert to fraction form
    807,153.12/1,210,799.27 = 208,109.21/x
  3. Step 3: Cross multiply
    807,153.12x = 1,210,799.27 × 208,109.21
  4. Step 4: Simplify right side
    807,153.12x = 251,978,474,014.55
  5. Step 5: Solve for x
    x = 251,978,474,014.55/807,153.12
  6. Step 6: Final answer
    x = 312,181.75

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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.