Finding the Fourth Proportional to 253,429.53, 349,695.12 and 153,922.35
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Solution
The fourth proportional to 253,429.53, 349,695.12 and 153,922.35 is: 212,389.99
Step by Step Solution
- Step 1: Write the proportion equation
253,429.53 : 349,695.12 = 153,922.35 : x - Step 2: Convert to fraction form
253,429.53/349,695.12 = 153,922.35/x - Step 3: Cross multiply
253,429.53x = 349,695.12 × 153,922.35 - Step 4: Simplify right side
253,429.53x = 53,825,893,884.32 - Step 5: Solve for x
x = 53,825,893,884.32/253,429.53 - Step 6: Final answer
x = 212,389.99
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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.