Finding the Fourth Proportional to 307,640.80, 461,461.20 and 97,295.20
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Solution
The fourth proportional to 307,640.80, 461,461.20 and 97,295.20 is: 145,942.80
Step by Step Solution
- Step 1: Write the proportion equation
307,640.80 : 461,461.20 = 97,295.20 : x - Step 2: Convert to fraction form
307,640.80/461,461.20 = 97,295.20/x - Step 3: Cross multiply
307,640.80x = 461,461.20 × 97,295.20 - Step 4: Simplify right side
307,640.80x = 44,897,959,746.24 - Step 5: Solve for x
x = 44,897,959,746.24/307,640.80 - Step 6: Final answer
x = 145,942.80
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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.