Finding the Fourth Proportional to 310,630.97, 465,995.68 and 100,219.70
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Solution
The fourth proportional to 310,630.97, 465,995.68 and 100,219.70 is: 150,345.43
Step by Step Solution
- Step 1: Write the proportion equation
310,630.97 : 465,995.68 = 100,219.70 : x - Step 2: Convert to fraction form
310,630.97/465,995.68 = 100,219.70/x - Step 3: Cross multiply
310,630.97x = 465,995.68 × 100,219.70 - Step 4: Simplify right side
310,630.97x = 46,701,948,165.34 - Step 5: Solve for x
x = 46,701,948,165.34/310,630.97 - Step 6: Final answer
x = 150,345.43
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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.