Finding the Fourth Proportional to 285,285.18, 393,715.71 and 157,972.62
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Solution
The fourth proportional to 285,285.18, 393,715.71 and 157,972.62 is: 218,014.49
Step by Step Solution
- Step 1: Write the proportion equation
285,285.18 : 393,715.71 = 157,972.62 : x - Step 2: Convert to fraction form
285,285.18/393,715.71 = 157,972.62/x - Step 3: Cross multiply
285,285.18x = 393,715.71 × 157,972.62 - Step 4: Simplify right side
285,285.18x = 62,196,302,243.86 - Step 5: Solve for x
x = 62,196,302,243.86/285,285.18 - Step 6: Final answer
x = 218,014.49
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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.