Finding the Fourth Proportional to 257,199.01, 355,027.80 and 209,369.32
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Solution
The fourth proportional to 257,199.01, 355,027.80 and 209,369.32 is: 289,005.50
Step by Step Solution
- Step 1: Write the proportion equation
257,199.01 : 355,027.80 = 209,369.32 : x - Step 2: Convert to fraction form
257,199.01/355,027.80 = 209,369.32/x - Step 3: Cross multiply
257,199.01x = 355,027.80 × 209,369.32 - Step 4: Simplify right side
257,199.01x = 74,331,929,067.10 - Step 5: Solve for x
x = 74,331,929,067.10/257,199.01 - Step 6: Final answer
x = 289,005.50
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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.