Finding the Fourth Proportional to 197,128.29, 272,037.18 and 106,484.28
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Solution
The fourth proportional to 197,128.29, 272,037.18 and 106,484.28 is: 146,948.38
Step by Step Solution
- Step 1: Write the proportion equation
197,128.29 : 272,037.18 = 106,484.28 : x - Step 2: Convert to fraction form
197,128.29/272,037.18 = 106,484.28/x - Step 3: Cross multiply
197,128.29x = 272,037.18 × 106,484.28 - Step 4: Simplify right side
197,128.29x = 28,967,683,245.53 - Step 5: Solve for x
x = 28,967,683,245.53/197,128.29 - Step 6: Final answer
x = 146,948.38
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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.