Finding the Fourth Proportional to 185,369.96, 278,076.81 and 138,918.08
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Solution
The fourth proportional to 185,369.96, 278,076.81 and 138,918.08 is: 208,393.51
Step by Step Solution
- Step 1: Write the proportion equation
185,369.96 : 278,076.81 = 138,918.08 : x - Step 2: Convert to fraction form
185,369.96/278,076.81 = 138,918.08/x - Step 3: Cross multiply
185,369.96x = 278,076.81 × 138,918.08 - Step 4: Simplify right side
185,369.96x = 38,629,896,537.72 - Step 5: Solve for x
x = 38,629,896,537.72/185,369.96 - Step 6: Final answer
x = 208,393.51
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.