Finding the Fourth Proportional to 257,580.36, 355,427.04 and 142,857.63
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Solution
The fourth proportional to 257,580.36, 355,427.04 and 142,857.63 is: 197,124.75
Step by Step Solution
- Step 1: Write the proportion equation
257,580.36 : 355,427.04 = 142,857.63 : x - Step 2: Convert to fraction form
257,580.36/355,427.04 = 142,857.63/x - Step 3: Cross multiply
257,580.36x = 355,427.04 × 142,857.63 - Step 4: Simplify right side
257,580.36x = 50,775,464,572.32 - Step 5: Solve for x
x = 50,775,464,572.32/257,580.36 - Step 6: Final answer
x = 197,124.75
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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.