Finding the Fourth Proportional to 216,772.84, 299,158.14 and 121,273.84
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Solution
The fourth proportional to 216,772.84, 299,158.14 and 121,273.84 is: 167,364.40
Step by Step Solution
- Step 1: Write the proportion equation
216,772.84 : 299,158.14 = 121,273.84 : x - Step 2: Convert to fraction form
216,772.84/299,158.14 = 121,273.84/x - Step 3: Cross multiply
216,772.84x = 299,158.14 × 121,273.84 - Step 4: Simplify right side
216,772.84x = 36,280,056,405.06 - Step 5: Solve for x
x = 36,280,056,405.06/216,772.84 - Step 6: Final answer
x = 167,364.40
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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.