Finding the Fourth Proportional to 636,396.81, 954,594.86 and 187,121.40
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Solution
The fourth proportional to 636,396.81, 954,594.86 and 187,121.40 is: 280,681.99
Step by Step Solution
- Step 1: Write the proportion equation
636,396.81 : 954,594.86 = 187,121.40 : x - Step 2: Convert to fraction form
636,396.81/954,594.86 = 187,121.40/x - Step 3: Cross multiply
636,396.81x = 954,594.86 × 187,121.40 - Step 4: Simplify right side
636,396.81x = 178,625,125,700.40 - Step 5: Solve for x
x = 178,625,125,700.40/636,396.81 - Step 6: Final answer
x = 280,681.99
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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.