Finding the Fourth Proportional to 281,132.48, 387,970.08 and 153,813.44
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Solution
The fourth proportional to 281,132.48, 387,970.08 and 153,813.44 is: 212,266.52
Step by Step Solution
- Step 1: Write the proportion equation
281,132.48 : 387,970.08 = 153,813.44 : x - Step 2: Convert to fraction form
281,132.48/387,970.08 = 153,813.44/x - Step 3: Cross multiply
281,132.48x = 387,970.08 × 153,813.44 - Step 4: Simplify right side
281,132.48x = 59,675,012,621.88 - Step 5: Solve for x
x = 59,675,012,621.88/281,132.48 - Step 6: Final answer
x = 212,266.52
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1.5x scale
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.