Finding the Fourth Proportional to 211,637.84, 317,437.32 and 71,397.68
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Solution
The fourth proportional to 211,637.84, 317,437.32 and 71,397.68 is: 107,089.96
Step by Step Solution
- Step 1: Write the proportion equation
211,637.84 : 317,437.32 = 71,397.68 : x - Step 2: Convert to fraction form
211,637.84/317,437.32 = 71,397.68/x - Step 3: Cross multiply
211,637.84x = 317,437.32 × 71,397.68 - Step 4: Simplify right side
211,637.84x = 22,664,288,193.42 - Step 5: Solve for x
x = 22,664,288,193.42/211,637.84 - Step 6: Final answer
x = 107,089.96
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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.