Finding the Fourth Proportional to 228,762.24, 315,691.68 and 128,160.96
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Solution
The fourth proportional to 228,762.24, 315,691.68 and 128,160.96 is: 176,862.01
Step by Step Solution
- Step 1: Write the proportion equation
228,762.24 : 315,691.68 = 128,160.96 : x - Step 2: Convert to fraction form
228,762.24/315,691.68 = 128,160.96/x - Step 3: Cross multiply
228,762.24x = 315,691.68 × 128,160.96 - Step 4: Simplify right side
228,762.24x = 40,459,348,772.81 - Step 5: Solve for x
x = 40,459,348,772.81/228,762.24 - Step 6: Final answer
x = 176,862.01
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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.