Finding the Fourth Proportional to 243,533.99, 364,901.64 and 172,107.78
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Solution
The fourth proportional to 243,533.99, 364,901.64 and 172,107.78 is: 257,879.45
Step by Step Solution
- Step 1: Write the proportion equation
243,533.99 : 364,901.64 = 172,107.78 : x - Step 2: Convert to fraction form
243,533.99/364,901.64 = 172,107.78/x - Step 3: Cross multiply
243,533.99x = 364,901.64 × 172,107.78 - Step 4: Simplify right side
243,533.99x = 62,802,411,178.76 - Step 5: Solve for x
x = 62,802,411,178.76/243,533.99 - Step 6: Final answer
x = 257,879.45
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.