Finding the Fourth Proportional to 216,312.20, 298,509.08 and 119,515.75
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Solution
The fourth proportional to 216,312.20, 298,509.08 and 119,515.75 is: 164,930.76
Step by Step Solution
- Step 1: Write the proportion equation
216,312.20 : 298,509.08 = 119,515.75 : x - Step 2: Convert to fraction form
216,312.20/298,509.08 = 119,515.75/x - Step 3: Cross multiply
216,312.20x = 298,509.08 × 119,515.75 - Step 4: Simplify right side
216,312.20x = 35,676,536,578.01 - Step 5: Solve for x
x = 35,676,536,578.01/216,312.20 - Step 6: Final answer
x = 164,930.76
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.