Finding the Fourth Proportional to 279,345.57, 385,505.58 and 158,491.95
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Solution
The fourth proportional to 279,345.57, 385,505.58 and 158,491.95 is: 218,723.82
Step by Step Solution
- Step 1: Write the proportion equation
279,345.57 : 385,505.58 = 158,491.95 : x - Step 2: Convert to fraction form
279,345.57/385,505.58 = 158,491.95/x - Step 3: Cross multiply
279,345.57x = 385,505.58 × 158,491.95 - Step 4: Simplify right side
279,345.57x = 61,099,531,110.08 - Step 5: Solve for x
x = 61,099,531,110.08/279,345.57 - Step 6: Final answer
x = 218,723.82
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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.