Finding the Fourth Proportional to 287,117.20, 430,358.67 and 118,544.59
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Solution
The fourth proportional to 287,117.20, 430,358.67 and 118,544.59 is: 177,685.95
Step by Step Solution
- Step 1: Write the proportion equation
287,117.20 : 430,358.67 = 118,544.59 : x - Step 2: Convert to fraction form
287,117.20/430,358.67 = 118,544.59/x - Step 3: Cross multiply
287,117.20x = 430,358.67 × 118,544.59 - Step 4: Simplify right side
287,117.20x = 51,016,692,088.10 - Step 5: Solve for x
x = 51,016,692,088.10/287,117.20 - Step 6: Final answer
x = 177,685.95
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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.