Finding the Fourth Proportional to 274,356.18, 378,589.95 and 153,487.98
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Solution
The fourth proportional to 274,356.18, 378,589.95 and 153,487.98 is: 211,801.34
Step by Step Solution
- Step 1: Write the proportion equation
274,356.18 : 378,589.95 = 153,487.98 : x - Step 2: Convert to fraction form
274,356.18/378,589.95 = 153,487.98/x - Step 3: Cross multiply
274,356.18x = 378,589.95 × 153,487.98 - Step 4: Simplify right side
274,356.18x = 58,109,006,673.80 - Step 5: Solve for x
x = 58,109,006,673.80/274,356.18 - Step 6: Final answer
x = 211,801.34
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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.