Finding the Fourth Proportional to 153,257.08, 211,492.74 and 86,189.08
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Solution
The fourth proportional to 153,257.08, 211,492.74 and 86,189.08 is: 118,939.79
Step by Step Solution
- Step 1: Write the proportion equation
153,257.08 : 211,492.74 = 86,189.08 : x - Step 2: Convert to fraction form
153,257.08/211,492.74 = 86,189.08/x - Step 3: Cross multiply
153,257.08x = 211,492.74 × 86,189.08 - Step 4: Simplify right side
153,257.08x = 18,228,364,687.28 - Step 5: Solve for x
x = 18,228,364,687.28/153,257.08 - Step 6: Final answer
x = 118,939.79
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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.