Finding the Fourth Proportional to 310,415.40, 465,623.10 and 110,742.30
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Solution
The fourth proportional to 310,415.40, 465,623.10 and 110,742.30 is: 166,113.45
Step by Step Solution
- Step 1: Write the proportion equation
310,415.40 : 465,623.10 = 110,742.30 : x - Step 2: Convert to fraction form
310,415.40/465,623.10 = 110,742.30/x - Step 3: Cross multiply
310,415.40x = 465,623.10 × 110,742.30 - Step 4: Simplify right side
310,415.40x = 51,564,173,027.13 - Step 5: Solve for x
x = 51,564,173,027.13/310,415.40 - Step 6: Final answer
x = 166,113.45
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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.