Finding the Fourth Proportional to 355,347.18, 533,230.74 and 130,865.40
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Solution
The fourth proportional to 355,347.18, 533,230.74 and 130,865.40 is: 196,375.43
Step by Step Solution
- Step 1: Write the proportion equation
355,347.18 : 533,230.74 = 130,865.40 : x - Step 2: Convert to fraction form
355,347.18/533,230.74 = 130,865.40/x - Step 3: Cross multiply
355,347.18x = 533,230.74 × 130,865.40 - Step 4: Simplify right side
355,347.18x = 69,781,454,082.40 - Step 5: Solve for x
x = 69,781,454,082.40/355,347.18 - Step 6: Final answer
x = 196,375.43
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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.