Finding the Fourth Proportional to 316,963.20, 475,444.80 and 106,579.20
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Solution
The fourth proportional to 316,963.20, 475,444.80 and 106,579.20 is: 159,868.80
Step by Step Solution
- Step 1: Write the proportion equation
316,963.20 : 475,444.80 = 106,579.20 : x - Step 2: Convert to fraction form
316,963.20/475,444.80 = 106,579.20/x - Step 3: Cross multiply
316,963.20x = 475,444.80 × 106,579.20 - Step 4: Simplify right side
316,963.20x = 50,672,526,428.16 - Step 5: Solve for x
x = 50,672,526,428.16/316,963.20 - Step 6: Final answer
x = 159,868.80
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.