Finding the Fourth Proportional to 268,468.40, 403,009.80 and 157,722.80
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Solution
The fourth proportional to 268,468.40, 403,009.80 and 157,722.80 is: 236,764.68
Step by Step Solution
- Step 1: Write the proportion equation
268,468.40 : 403,009.80 = 157,722.80 : x - Step 2: Convert to fraction form
268,468.40/403,009.80 = 157,722.80/x - Step 3: Cross multiply
268,468.40x = 403,009.80 × 157,722.80 - Step 4: Simplify right side
268,468.40x = 63,563,834,083.44 - Step 5: Solve for x
x = 63,563,834,083.44/268,468.40 - Step 6: Final answer
x = 236,764.68
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1.5x scale
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.