Finding the Fourth Proportional to 402,903.02, 556,020.79 and 221,628.97
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Solution
The fourth proportional to 402,903.02, 556,020.79 and 221,628.97 is: 305,856.02
Step by Step Solution
- Step 1: Write the proportion equation
402,903.02 : 556,020.79 = 221,628.97 : x - Step 2: Convert to fraction form
402,903.02/556,020.79 = 221,628.97/x - Step 3: Cross multiply
402,903.02x = 556,020.79 × 221,628.97 - Step 4: Simplify right side
402,903.02x = 123,230,315,127.24 - Step 5: Solve for x
x = 123,230,315,127.24/402,903.02 - Step 6: Final answer
x = 305,856.02
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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.