Finding the Fourth Proportional to 257,353.40, 386,032.98 and 107,616.44
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Solution
The fourth proportional to 257,353.40, 386,032.98 and 107,616.44 is: 161,425.86
Step by Step Solution
- Step 1: Write the proportion equation
257,353.40 : 386,032.98 = 107,616.44 : x - Step 2: Convert to fraction form
257,353.40/386,032.98 = 107,616.44/x - Step 3: Cross multiply
257,353.40x = 386,032.98 × 107,616.44 - Step 4: Simplify right side
257,353.40x = 41,543,495,030.19 - Step 5: Solve for x
x = 41,543,495,030.19/257,353.40 - Step 6: Final answer
x = 161,425.86
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.