Finding the Fourth Proportional to 309,948.14, 464,905.68 and 99,569.62
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Solution
The fourth proportional to 309,948.14, 464,905.68 and 99,569.62 is: 149,349.12
Step by Step Solution
- Step 1: Write the proportion equation
309,948.14 : 464,905.68 = 99,569.62 : x - Step 2: Convert to fraction form
309,948.14/464,905.68 = 99,569.62/x - Step 3: Cross multiply
309,948.14x = 464,905.68 × 99,569.62 - Step 4: Simplify right side
309,948.14x = 46,290,481,893.44 - Step 5: Solve for x
x = 46,290,481,893.44/309,948.14 - Step 6: Final answer
x = 149,349.12
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1.5x scale
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.