Finding the Fourth Proportional to 318,787.18, 475,694.24 and 290,492.87
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Solution
The fourth proportional to 318,787.18, 475,694.24 and 290,492.87 is: 433,473.46
Step by Step Solution
- Step 1: Write the proportion equation
318,787.18 : 475,694.24 = 290,492.87 : x - Step 2: Convert to fraction form
318,787.18/475,694.24 = 290,492.87/x - Step 3: Cross multiply
318,787.18x = 475,694.24 × 290,492.87 - Step 4: Simplify right side
318,787.18x = 138,185,781,189.13 - Step 5: Solve for x
x = 138,185,781,189.13/318,787.18 - Step 6: Final answer
x = 433,473.46
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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.