Finding the Fourth Proportional to 257,976.62, 355,988.21 and 144,777.50
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Solution
The fourth proportional to 257,976.62, 355,988.21 and 144,777.50 is: 199,781.99
Step by Step Solution
- Step 1: Write the proportion equation
257,976.62 : 355,988.21 = 144,777.50 : x - Step 2: Convert to fraction form
257,976.62/355,988.21 = 144,777.50/x - Step 3: Cross multiply
257,976.62x = 355,988.21 × 144,777.50 - Step 4: Simplify right side
257,976.62x = 51,539,082,349.39 - Step 5: Solve for x
x = 51,539,082,349.39/257,976.62 - Step 6: Final answer
x = 199,781.99
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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.