Finding the Fourth Proportional to 153,128.99, 229,675.26 and 40,817.63
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Solution
The fourth proportional to 153,128.99, 229,675.26 and 40,817.63 is: 61,221.59
Step by Step Solution
- Step 1: Write the proportion equation
153,128.99 : 229,675.26 = 40,817.63 : x - Step 2: Convert to fraction form
153,128.99/229,675.26 = 40,817.63/x - Step 3: Cross multiply
153,128.99x = 229,675.26 × 40,817.63 - Step 4: Simplify right side
153,128.99x = 9,374,799,782.83 - Step 5: Solve for x
x = 9,374,799,782.83/153,128.99 - Step 6: Final answer
x = 61,221.59
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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.