Finding the Fourth Proportional to 356,432.64, 534,644.31 and 86,562.99
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Solution
The fourth proportional to 356,432.64, 534,644.31 and 86,562.99 is: 129,843.36
Step by Step Solution
- Step 1: Write the proportion equation
356,432.64 : 534,644.31 = 86,562.99 : x - Step 2: Convert to fraction form
356,432.64/534,644.31 = 86,562.99/x - Step 3: Cross multiply
356,432.64x = 534,644.31 × 86,562.99 - Step 4: Simplify right side
356,432.64x = 46,280,410,060.09 - Step 5: Solve for x
x = 46,280,410,060.09/356,432.64 - Step 6: Final answer
x = 129,843.36
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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.