Finding the Fourth Proportional to 216,962.80, 299,374.12 and 121,473.52
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Solution
The fourth proportional to 216,962.80, 299,374.12 and 121,473.52 is: 167,614.12
Step by Step Solution
- Step 1: Write the proportion equation
216,962.80 : 299,374.12 = 121,473.52 : x - Step 2: Convert to fraction form
216,962.80/299,374.12 = 121,473.52/x - Step 3: Cross multiply
216,962.80x = 299,374.12 × 121,473.52 - Step 4: Simplify right side
216,962.80x = 36,366,028,153.30 - Step 5: Solve for x
x = 36,366,028,153.30/216,962.80 - Step 6: Final answer
x = 167,614.12
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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.