Finding the Fourth Proportional to 400,494.21, 552,677.76 and 216,728.75
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Solution
The fourth proportional to 400,494.21, 552,677.76 and 216,728.75 is: 299,083.37
Step by Step Solution
- Step 1: Write the proportion equation
400,494.21 : 552,677.76 = 216,728.75 : x - Step 2: Convert to fraction form
400,494.21/552,677.76 = 216,728.75/x - Step 3: Cross multiply
400,494.21x = 552,677.76 × 216,728.75 - Step 4: Simplify right side
400,494.21x = 119,781,157,314.21 - Step 5: Solve for x
x = 119,781,157,314.21/400,494.21 - Step 6: Final answer
x = 299,083.37
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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.