Finding the Fourth Proportional to 438,203.99, 657,343.61 and 153,870.09
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Solution
The fourth proportional to 438,203.99, 657,343.61 and 153,870.09 is: 230,818.35
Step by Step Solution
- Step 1: Write the proportion equation
438,203.99 : 657,343.61 = 153,870.09 : x - Step 2: Convert to fraction form
438,203.99/657,343.61 = 153,870.09/x - Step 3: Cross multiply
438,203.99x = 657,343.61 × 153,870.09 - Step 4: Simplify right side
438,203.99x = 101,145,520,431.63 - Step 5: Solve for x
x = 101,145,520,431.63/438,203.99 - Step 6: Final answer
x = 230,818.35
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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.