Finding the Fourth Proportional to 400,231.77, 552,332.99 and 228,146.66
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Solution
The fourth proportional to 400,231.77, 552,332.99 and 228,146.66 is: 314,849.89
Step by Step Solution
- Step 1: Write the proportion equation
400,231.77 : 552,332.99 = 228,146.66 : x - Step 2: Convert to fraction form
400,231.77/552,332.99 = 228,146.66/x - Step 3: Cross multiply
400,231.77x = 552,332.99 × 228,146.66 - Step 4: Simplify right side
400,231.77x = 126,012,926,876.31 - Step 5: Solve for x
x = 126,012,926,876.31/400,231.77 - Step 6: Final answer
x = 314,849.89
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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.