Finding the Fourth Proportional to 257,537.12, 355,400.10 and 144,359.87
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Solution
The fourth proportional to 257,537.12, 355,400.10 and 144,359.87 is: 199,215.99
Step by Step Solution
- Step 1: Write the proportion equation
257,537.12 : 355,400.10 = 144,359.87 : x - Step 2: Convert to fraction form
257,537.12/355,400.10 = 144,359.87/x - Step 3: Cross multiply
257,537.12x = 355,400.10 × 144,359.87 - Step 4: Simplify right side
257,537.12x = 51,305,510,456.99 - Step 5: Solve for x
x = 51,305,510,456.99/257,537.12 - Step 6: Final answer
x = 199,215.99
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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.