Finding the Fourth Proportional to 243,981.36, 336,630.30 and 140,590.14
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Solution
The fourth proportional to 243,981.36, 336,630.30 and 140,590.14 is: 193,977.53
Step by Step Solution
- Step 1: Write the proportion equation
243,981.36 : 336,630.30 = 140,590.14 : x - Step 2: Convert to fraction form
243,981.36/336,630.30 = 140,590.14/x - Step 3: Cross multiply
243,981.36x = 336,630.30 × 140,590.14 - Step 4: Simplify right side
243,981.36x = 47,326,901,005.24 - Step 5: Solve for x
x = 47,326,901,005.24/243,981.36 - Step 6: Final answer
x = 193,977.53
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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.