Finding the Fourth Proportional to 216,898.56, 299,338.74 and 121,403.88
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Solution
The fourth proportional to 216,898.56, 299,338.74 and 121,403.88 is: 167,547.84
Step by Step Solution
- Step 1: Write the proportion equation
216,898.56 : 299,338.74 = 121,403.88 : x - Step 2: Convert to fraction form
216,898.56/299,338.74 = 121,403.88/x - Step 3: Cross multiply
216,898.56x = 299,338.74 × 121,403.88 - Step 4: Simplify right side
216,898.56x = 36,340,884,470.31 - Step 5: Solve for x
x = 36,340,884,470.31/216,898.56 - Step 6: Final answer
x = 167,547.84
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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.