Finding the Fourth Proportional to 153,261.11, 211,497.01 and 88,733.07
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Solution
The fourth proportional to 153,261.11, 211,497.01 and 88,733.07 is: 122,449.71
Step by Step Solution
- Step 1: Write the proportion equation
153,261.11 : 211,497.01 = 88,733.07 : x - Step 2: Convert to fraction form
153,261.11/211,497.01 = 88,733.07/x - Step 3: Cross multiply
153,261.11x = 211,497.01 × 88,733.07 - Step 4: Simplify right side
153,261.11x = 18,766,778,771.29 - Step 5: Solve for x
x = 18,766,778,771.29/153,261.11 - Step 6: Final answer
x = 122,449.71
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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.