Finding the Fourth Proportional to 257,611.28, 355,468.68 and 148,719.44
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Solution
The fourth proportional to 257,611.28, 355,468.68 and 148,719.44 is: 205,212.69
Step by Step Solution
- Step 1: Write the proportion equation
257,611.28 : 355,468.68 = 148,719.44 : x - Step 2: Convert to fraction form
257,611.28/355,468.68 = 148,719.44/x - Step 3: Cross multiply
257,611.28x = 355,468.68 × 148,719.44 - Step 4: Simplify right side
257,611.28x = 52,865,103,027.14 - Step 5: Solve for x
x = 52,865,103,027.14/257,611.28 - Step 6: Final answer
x = 205,212.69
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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.