Finding the Fourth Proportional to 286,703.06, 395,660.36 and 157,651.32
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Solution
The fourth proportional to 286,703.06, 395,660.36 and 157,651.32 is: 217,564.41
Step by Step Solution
- Step 1: Write the proportion equation
286,703.06 : 395,660.36 = 157,651.32 : x - Step 2: Convert to fraction form
286,703.06/395,660.36 = 157,651.32/x - Step 3: Cross multiply
286,703.06x = 395,660.36 × 157,651.32 - Step 4: Simplify right side
286,703.06x = 62,376,379,903.53 - Step 5: Solve for x
x = 62,376,379,903.53/286,703.06 - Step 6: Final answer
x = 217,564.41
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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.