Finding the Fourth Proportional to 360,443.99, 497,178.37 and 231,177.71
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Solution
The fourth proportional to 360,443.99, 497,178.37 and 231,177.71 is: 318,874.95
Step by Step Solution
- Step 1: Write the proportion equation
360,443.99 : 497,178.37 = 231,177.71 : x - Step 2: Convert to fraction form
360,443.99/497,178.37 = 231,177.71/x - Step 3: Cross multiply
360,443.99x = 497,178.37 × 231,177.71 - Step 4: Simplify right side
360,443.99x = 114,936,558,570.05 - Step 5: Solve for x
x = 114,936,558,570.05/360,443.99 - Step 6: Final answer
x = 318,874.95
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.