Finding the Fourth Proportional to 387,729.74, 581,687.76 and 134,973.02
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Solution
The fourth proportional to 387,729.74, 581,687.76 and 134,973.02 is: 202,491.96
Step by Step Solution
- Step 1: Write the proportion equation
387,729.74 : 581,687.76 = 134,973.02 : x - Step 2: Convert to fraction form
387,729.74/581,687.76 = 134,973.02/x - Step 3: Cross multiply
387,729.74x = 581,687.76 × 134,973.02 - Step 4: Simplify right side
387,729.74x = 78,512,153,664.24 - Step 5: Solve for x
x = 78,512,153,664.24/387,729.74 - Step 6: Final answer
x = 202,491.96
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.