Finding the Fourth Proportional to 394,986.47, 592,339.58 and 142,199.08
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Solution
The fourth proportional to 394,986.47, 592,339.58 and 142,199.08 is: 213,248.17
Step by Step Solution
- Step 1: Write the proportion equation
394,986.47 : 592,339.58 = 142,199.08 : x - Step 2: Convert to fraction form
394,986.47/592,339.58 = 142,199.08/x - Step 3: Cross multiply
394,986.47x = 592,339.58 × 142,199.08 - Step 4: Simplify right side
394,986.47x = 84,230,143,323.59 - Step 5: Solve for x
x = 84,230,143,323.59/394,986.47 - Step 6: Final answer
x = 213,248.17
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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.