Finding the Fourth Proportional to 257,452.29, 386,178.48 and 70,463.79
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Solution
The fourth proportional to 257,452.29, 386,178.48 and 70,463.79 is: 105,695.70
Step by Step Solution
- Step 1: Write the proportion equation
257,452.29 : 386,178.48 = 70,463.79 : x - Step 2: Convert to fraction form
257,452.29/386,178.48 = 70,463.79/x - Step 3: Cross multiply
257,452.29x = 386,178.48 × 70,463.79 - Step 4: Simplify right side
257,452.29x = 27,211,599,317.24 - Step 5: Solve for x
x = 27,211,599,317.24/257,452.29 - Step 6: Final answer
x = 105,695.70
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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.