Finding the Fourth Proportional to 213,715.87, 294,929.10 and 118,225.98
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Solution
The fourth proportional to 213,715.87, 294,929.10 and 118,225.98 is: 163,152.52
Step by Step Solution
- Step 1: Write the proportion equation
213,715.87 : 294,929.10 = 118,225.98 : x - Step 2: Convert to fraction form
213,715.87/294,929.10 = 118,225.98/x - Step 3: Cross multiply
213,715.87x = 294,929.10 × 118,225.98 - Step 4: Simplify right side
213,715.87x = 34,868,281,878.02 - Step 5: Solve for x
x = 34,868,281,878.02/213,715.87 - Step 6: Final answer
x = 163,152.52
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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.