Finding the Fourth Proportional to 307,951.20, 461,921.76 and 97,588.80
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Solution
The fourth proportional to 307,951.20, 461,921.76 and 97,588.80 is: 146,381.60
Step by Step Solution
- Step 1: Write the proportion equation
307,951.20 : 461,921.76 = 97,588.80 : x - Step 2: Convert to fraction form
307,951.20/461,921.76 = 97,588.80/x - Step 3: Cross multiply
307,951.20x = 461,921.76 × 97,588.80 - Step 4: Simplify right side
307,951.20x = 45,078,390,252.29 - Step 5: Solve for x
x = 45,078,390,252.29/307,951.20 - Step 6: Final answer
x = 146,381.60
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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.