Finding the Fourth Proportional to 384,745.80, 531,289.65 and 239,798.96
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Solution
The fourth proportional to 384,745.80, 531,289.65 and 239,798.96 is: 331,134.75
Step by Step Solution
- Step 1: Write the proportion equation
384,745.80 : 531,289.65 = 239,798.96 : x - Step 2: Convert to fraction form
384,745.80/531,289.65 = 239,798.96/x - Step 3: Cross multiply
384,745.80x = 531,289.65 × 239,798.96 - Step 4: Simplify right side
384,745.80x = 127,402,701,673.32 - Step 5: Solve for x
x = 127,402,701,673.32/384,745.80 - Step 6: Final answer
x = 331,134.75
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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.