Finding the Fourth Proportional to 355,202.40, 532,779.30 and 115,312.80
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Solution
The fourth proportional to 355,202.40, 532,779.30 and 115,312.80 is: 172,961.31
Step by Step Solution
- Step 1: Write the proportion equation
355,202.40 : 532,779.30 = 115,312.80 : x - Step 2: Convert to fraction form
355,202.40/532,779.30 = 115,312.80/x - Step 3: Cross multiply
355,202.40x = 532,779.30 × 115,312.80 - Step 4: Simplify right side
355,202.40x = 61,436,272,865.04 - Step 5: Solve for x
x = 61,436,272,865.04/355,202.40 - Step 6: Final answer
x = 172,961.31
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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.