Finding the Fourth Proportional to 257,585.28, 386,373.60 and 70,596.78
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Solution
The fourth proportional to 257,585.28, 386,373.60 and 70,596.78 is: 105,893.99
Step by Step Solution
- Step 1: Write the proportion equation
257,585.28 : 386,373.60 = 70,596.78 : x - Step 2: Convert to fraction form
257,585.28/386,373.60 = 70,596.78/x - Step 3: Cross multiply
257,585.28x = 386,373.60 × 70,596.78 - Step 4: Simplify right side
257,585.28x = 27,276,732,037.01 - Step 5: Solve for x
x = 27,276,732,037.01/257,585.28 - Step 6: Final answer
x = 105,893.99
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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.