Finding the Fourth Proportional to 153,131.99, 229,679.76 and 40,820.63
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Solution
The fourth proportional to 153,131.99, 229,679.76 and 40,820.63 is: 61,226.09
Step by Step Solution
- Step 1: Write the proportion equation
153,131.99 : 229,679.76 = 40,820.63 : x - Step 2: Convert to fraction form
153,131.99/229,679.76 = 40,820.63/x - Step 3: Cross multiply
153,131.99x = 229,679.76 × 40,820.63 - Step 4: Simplify right side
153,131.99x = 9,375,672,501.45 - Step 5: Solve for x
x = 9,375,672,501.45/153,131.99 - Step 6: Final answer
x = 61,226.09
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.