Finding the Fourth Proportional to 165,435.36, 248,156.28 and 47,109.74
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Solution
The fourth proportional to 165,435.36, 248,156.28 and 47,109.74 is: 70,665.53
Step by Step Solution
- Step 1: Write the proportion equation
165,435.36 : 248,156.28 = 47,109.74 : x - Step 2: Convert to fraction form
165,435.36/248,156.28 = 47,109.74/x - Step 3: Cross multiply
165,435.36x = 248,156.28 × 47,109.74 - Step 4: Simplify right side
165,435.36x = 11,690,577,830.17 - Step 5: Solve for x
x = 11,690,577,830.17/165,435.36 - Step 6: Final answer
x = 70,665.53
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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.