Finding the Fourth Proportional to 236,898.12, 355,487.16 and 87,243.60
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Solution
The fourth proportional to 236,898.12, 355,487.16 and 87,243.60 is: 130,916.95
Step by Step Solution
- Step 1: Write the proportion equation
236,898.12 : 355,487.16 = 87,243.60 : x - Step 2: Convert to fraction form
236,898.12/355,487.16 = 87,243.60/x - Step 3: Cross multiply
236,898.12x = 355,487.16 × 87,243.60 - Step 4: Simplify right side
236,898.12x = 31,013,979,592.18 - Step 5: Solve for x
x = 31,013,979,592.18/236,898.12 - Step 6: Final answer
x = 130,916.95
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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.