Finding the Fourth Proportional to 257,804.14, 355,764.35 and 143,076.12
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Solution
The fourth proportional to 257,804.14, 355,764.35 and 143,076.12 is: 197,442.07
Step by Step Solution
- Step 1: Write the proportion equation
257,804.14 : 355,764.35 = 143,076.12 : x - Step 2: Convert to fraction form
257,804.14/355,764.35 = 143,076.12/x - Step 3: Cross multiply
257,804.14x = 355,764.35 × 143,076.12 - Step 4: Simplify right side
257,804.14x = 50,901,381,411.19 - Step 5: Solve for x
x = 50,901,381,411.19/257,804.14 - Step 6: Final answer
x = 197,442.07
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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.