Finding the Fourth Proportional to 163,590.40, 245,731.20 and 157,715.20
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Solution
The fourth proportional to 163,590.40, 245,731.20 and 157,715.20 is: 236,905.99
Step by Step Solution
- Step 1: Write the proportion equation
163,590.40 : 245,731.20 = 157,715.20 : x - Step 2: Convert to fraction form
163,590.40/245,731.20 = 157,715.20/x - Step 3: Cross multiply
163,590.40x = 245,731.20 × 157,715.20 - Step 4: Simplify right side
163,590.40x = 38,755,545,354.24 - Step 5: Solve for x
x = 38,755,545,354.24/163,590.40 - Step 6: Final answer
x = 236,905.99
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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.