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Finding the Fourth Proportional to 660,243.51, 990,507.42 and 204,825.51

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Solution

The fourth proportional to 660,243.51, 990,507.42 and 204,825.51 is: 307,282.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    660,243.51 : 990,507.42 = 204,825.51 : x
  2. Step 2: Convert to fraction form
    660,243.51/990,507.42 = 204,825.51/x
  3. Step 3: Cross multiply
    660,243.51x = 990,507.42 × 204,825.51
  4. Step 4: Simplify right side
    660,243.51x = 202,881,187,460.28
  5. Step 5: Solve for x
    x = 202,881,187,460.28/660,243.51
  6. Step 6: Final answer
    x = 307,282.37

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1.5x scale

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.