Finding the Fourth Proportional to 228,594.61, 315,430.68 and 131,802.09
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Solution
The fourth proportional to 228,594.61, 315,430.68 and 131,802.09 is: 181,869.66
Step by Step Solution
- Step 1: Write the proportion equation
228,594.61 : 315,430.68 = 131,802.09 : x - Step 2: Convert to fraction form
228,594.61/315,430.68 = 131,802.09/x - Step 3: Cross multiply
228,594.61x = 315,430.68 × 131,802.09 - Step 4: Simplify right side
228,594.61x = 41,574,422,874.12 - Step 5: Solve for x
x = 41,574,422,874.12/228,594.61 - Step 6: Final answer
x = 181,869.66
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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.