Finding the Fourth Proportional to 286,703.81, 395,661.41 and 157,652.07
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Solution
The fourth proportional to 286,703.81, 395,661.41 and 157,652.07 is: 217,565.44
Step by Step Solution
- Step 1: Write the proportion equation
286,703.81 : 395,661.41 = 157,652.07 : x - Step 2: Convert to fraction form
286,703.81/395,661.41 = 157,652.07/x - Step 3: Cross multiply
286,703.81x = 395,661.41 × 157,652.07 - Step 4: Simplify right side
286,703.81x = 62,376,839,517.36 - Step 5: Solve for x
x = 62,376,839,517.36/286,703.81 - Step 6: Final answer
x = 217,565.44
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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.