Finding the Fourth Proportional to 185,386.62, 255,697.64 and 121,701.18
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Solution
The fourth proportional to 185,386.62, 255,697.64 and 121,701.18 is: 167,858.42
Step by Step Solution
- Step 1: Write the proportion equation
185,386.62 : 255,697.64 = 121,701.18 : x - Step 2: Convert to fraction form
185,386.62/255,697.64 = 121,701.18/x - Step 3: Cross multiply
185,386.62x = 255,697.64 × 121,701.18 - Step 4: Simplify right side
185,386.62x = 31,118,704,511.22 - Step 5: Solve for x
x = 31,118,704,511.22/185,386.62 - Step 6: Final answer
x = 167,858.42
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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.