Finding the Fourth Proportional to 211,547.57, 291,930.37 and 118,411.99
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Solution
The fourth proportional to 211,547.57, 291,930.37 and 118,411.99 is: 163,405.59
Step by Step Solution
- Step 1: Write the proportion equation
211,547.57 : 291,930.37 = 118,411.99 : x - Step 2: Convert to fraction form
211,547.57/291,930.37 = 118,411.99/x - Step 3: Cross multiply
211,547.57x = 291,930.37 × 118,411.99 - Step 4: Simplify right side
211,547.57x = 34,568,054,001.42 - Step 5: Solve for x
x = 34,568,054,001.42/211,547.57 - Step 6: Final answer
x = 163,405.59
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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.