Finding the Fourth Proportional to 307,615.40, 461,423.10 and 97,317.80
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Solution
The fourth proportional to 307,615.40, 461,423.10 and 97,317.80 is: 145,976.70
Step by Step Solution
- Step 1: Write the proportion equation
307,615.40 : 461,423.10 = 97,317.80 : x - Step 2: Convert to fraction form
307,615.40/461,423.10 = 97,317.80/x - Step 3: Cross multiply
307,615.40x = 461,423.10 × 97,317.80 - Step 4: Simplify right side
307,615.40x = 44,904,680,961.18 - Step 5: Solve for x
x = 44,904,680,961.18/307,615.40 - Step 6: Final answer
x = 145,976.70
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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.