Finding the Fourth Proportional to 228,357.08, 315,124.93 and 126,386.79
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Solution
The fourth proportional to 228,357.08, 315,124.93 and 126,386.79 is: 174,409.43
Step by Step Solution
- Step 1: Write the proportion equation
228,357.08 : 315,124.93 = 126,386.79 : x - Step 2: Convert to fraction form
228,357.08/315,124.93 = 126,386.79/x - Step 3: Cross multiply
228,357.08x = 315,124.93 × 126,386.79 - Step 4: Simplify right side
228,357.08x = 39,827,628,351.67 - Step 5: Solve for x
x = 39,827,628,351.67/228,357.08 - Step 6: Final answer
x = 174,409.43
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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.