Finding the Fourth Proportional to 153,279.02, 211,506.48 and 85,279.94
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Solution
The fourth proportional to 153,279.02, 211,506.48 and 85,279.94 is: 117,675.99
Step by Step Solution
- Step 1: Write the proportion equation
153,279.02 : 211,506.48 = 85,279.94 : x - Step 2: Convert to fraction form
153,279.02/211,506.48 = 85,279.94/x - Step 3: Cross multiply
153,279.02x = 211,506.48 × 85,279.94 - Step 4: Simplify right side
153,279.02x = 18,037,259,924.01 - Step 5: Solve for x
x = 18,037,259,924.01/153,279.02 - Step 6: Final answer
x = 117,675.99
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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.