Finding the Fourth Proportional to 211,214.90, 316,727.62 and 125,866.02
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Solution
The fourth proportional to 211,214.90, 316,727.62 and 125,866.02 is: 188,742.58
Step by Step Solution
- Step 1: Write the proportion equation
211,214.90 : 316,727.62 = 125,866.02 : x - Step 2: Convert to fraction form
211,214.90/316,727.62 = 125,866.02/x - Step 3: Cross multiply
211,214.90x = 316,727.62 × 125,866.02 - Step 4: Simplify right side
211,214.90x = 39,865,244,953.47 - Step 5: Solve for x
x = 39,865,244,953.47/211,214.90 - Step 6: Final answer
x = 188,742.58
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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.