Finding the Fourth Proportional to 216,888.44, 299,303.10 and 121,395.12
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Solution
The fourth proportional to 216,888.44, 299,303.10 and 121,395.12 is: 167,523.62
Step by Step Solution
- Step 1: Write the proportion equation
216,888.44 : 299,303.10 = 121,395.12 : x - Step 2: Convert to fraction form
216,888.44/299,303.10 = 121,395.12/x - Step 3: Cross multiply
216,888.44x = 299,303.10 × 121,395.12 - Step 4: Simplify right side
216,888.44x = 36,333,935,740.87 - Step 5: Solve for x
x = 36,333,935,740.87/216,888.44 - Step 6: Final answer
x = 167,523.62
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1.5x scale
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.