Finding the Fourth Proportional to 401,530.10, 554,112.43 and 231,764.09
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Solution
The fourth proportional to 401,530.10, 554,112.43 and 231,764.09 is: 319,834.95
Step by Step Solution
- Step 1: Write the proportion equation
401,530.10 : 554,112.43 = 231,764.09 : x - Step 2: Convert to fraction form
401,530.10/554,112.43 = 231,764.09/x - Step 3: Cross multiply
401,530.10x = 554,112.43 × 231,764.09 - Step 4: Simplify right side
401,530.10x = 128,423,359,746.67 - Step 5: Solve for x
x = 128,423,359,746.67/401,530.10 - Step 6: Final answer
x = 319,834.95
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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.