Finding the Fourth Proportional to 387,603.76, 581,438.86 and 107,121.02
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Solution
The fourth proportional to 387,603.76, 581,438.86 and 107,121.02 is: 160,690.71
Step by Step Solution
- Step 1: Write the proportion equation
387,603.76 : 581,438.86 = 107,121.02 : x - Step 2: Convert to fraction form
387,603.76/581,438.86 = 107,121.02/x - Step 3: Cross multiply
387,603.76x = 581,438.86 × 107,121.02 - Step 4: Simplify right side
387,603.76x = 62,284,323,750.84 - Step 5: Solve for x
x = 62,284,323,750.84/387,603.76 - Step 6: Final answer
x = 160,690.71
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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.