Finding the Fourth Proportional to 235,440.99, 352,814.10 and 139,278.75
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Solution
The fourth proportional to 235,440.99, 352,814.10 and 139,278.75 is: 208,712.62
Step by Step Solution
- Step 1: Write the proportion equation
235,440.99 : 352,814.10 = 139,278.75 : x - Step 2: Convert to fraction form
235,440.99/352,814.10 = 139,278.75/x - Step 3: Cross multiply
235,440.99x = 352,814.10 × 139,278.75 - Step 4: Simplify right side
235,440.99x = 49,139,506,830.38 - Step 5: Solve for x
x = 49,139,506,830.38/235,440.99 - Step 6: Final answer
x = 208,712.62
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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.