Finding the Fourth Proportional to 354,246.36, 529,021.47 and 311,322.84
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Solution
The fourth proportional to 354,246.36, 529,021.47 and 311,322.84 is: 464,920.70
Step by Step Solution
- Step 1: Write the proportion equation
354,246.36 : 529,021.47 = 311,322.84 : x - Step 2: Convert to fraction form
354,246.36/529,021.47 = 311,322.84/x - Step 3: Cross multiply
354,246.36x = 529,021.47 × 311,322.84 - Step 4: Simplify right side
354,246.36x = 164,696,466,461.38 - Step 5: Solve for x
x = 164,696,466,461.38/354,246.36 - Step 6: Final answer
x = 464,920.70
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.