Finding the Fourth Proportional to 299,261.99, 412,991.50 and 163,303.40
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Solution
The fourth proportional to 299,261.99, 412,991.50 and 163,303.40 is: 225,364.12
Step by Step Solution
- Step 1: Write the proportion equation
299,261.99 : 412,991.50 = 163,303.40 : x - Step 2: Convert to fraction form
299,261.99/412,991.50 = 163,303.40/x - Step 3: Cross multiply
299,261.99x = 412,991.50 × 163,303.40 - Step 4: Simplify right side
299,261.99x = 67,442,914,056.14 - Step 5: Solve for x
x = 67,442,914,056.14/299,261.99 - Step 6: Final answer
x = 225,364.12
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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.