Finding the Fourth Proportional to 257,679.27, 355,599.53 and 142,965.44
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Solution
The fourth proportional to 257,679.27, 355,599.53 and 142,965.44 is: 197,293.49
Step by Step Solution
- Step 1: Write the proportion equation
257,679.27 : 355,599.53 = 142,965.44 : x - Step 2: Convert to fraction form
257,679.27/355,599.53 = 142,965.44/x - Step 3: Cross multiply
257,679.27x = 355,599.53 × 142,965.44 - Step 4: Simplify right side
257,679.27x = 50,838,443,270.24 - Step 5: Solve for x
x = 50,838,443,270.24/257,679.27 - Step 6: Final answer
x = 197,293.49
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1.5x scale
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.