Finding the Fourth Proportional to 387,730.74, 581,689.26 and 134,974.02
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Solution
The fourth proportional to 387,730.74, 581,689.26 and 134,974.02 is: 202,493.46
Step by Step Solution
- Step 1: Write the proportion equation
387,730.74 : 581,689.26 = 134,974.02 : x - Step 2: Convert to fraction form
387,730.74/581,689.26 = 134,974.02/x - Step 3: Cross multiply
387,730.74x = 581,689.26 × 134,974.02 - Step 4: Simplify right side
387,730.74x = 78,512,937,813.03 - Step 5: Solve for x
x = 78,512,937,813.03/387,730.74 - Step 6: Final answer
x = 202,493.46
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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.