Finding the Fourth Proportional to 242,742.99, 335,128.85 and 215,810.98
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Solution
The fourth proportional to 242,742.99, 335,128.85 and 215,810.98 is: 297,946.74
Step by Step Solution
- Step 1: Write the proportion equation
242,742.99 : 335,128.85 = 215,810.98 : x - Step 2: Convert to fraction form
242,742.99/335,128.85 = 215,810.98/x - Step 3: Cross multiply
242,742.99x = 335,128.85 × 215,810.98 - Step 4: Simplify right side
242,742.99x = 72,324,484,437.19 - Step 5: Solve for x
x = 72,324,484,437.19/242,742.99 - Step 6: Final answer
x = 297,946.74
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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.