Finding the Fourth Proportional to 257,202.01, 355,031.94 and 209,372.32
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Solution
The fourth proportional to 257,202.01, 355,031.94 and 209,372.32 is: 289,009.64
Step by Step Solution
- Step 1: Write the proportion equation
257,202.01 : 355,031.94 = 209,372.32 : x - Step 2: Convert to fraction form
257,202.01/355,031.94 = 209,372.32/x - Step 3: Cross multiply
257,202.01x = 355,031.94 × 209,372.32 - Step 4: Simplify right side
257,202.01x = 74,333,860,951.90 - Step 5: Solve for x
x = 74,333,860,951.90/257,202.01 - Step 6: Final answer
x = 289,009.64
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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.