Finding the Fourth Proportional to 390,235.14, 585,618.78 and 179,874.90
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Solution
The fourth proportional to 390,235.14, 585,618.78 and 179,874.90 is: 269,934.99
Step by Step Solution
- Step 1: Write the proportion equation
390,235.14 : 585,618.78 = 179,874.90 : x - Step 2: Convert to fraction form
390,235.14/585,618.78 = 179,874.90/x - Step 3: Cross multiply
390,235.14x = 585,618.78 × 179,874.90 - Step 4: Simplify right side
390,235.14x = 105,338,119,490.62 - Step 5: Solve for x
x = 105,338,119,490.62/390,235.14 - Step 6: Final answer
x = 269,934.99
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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.