Finding the Fourth Proportional to 253,990.08, 380,985.12 and 104,204.88
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Solution
The fourth proportional to 253,990.08, 380,985.12 and 104,204.88 is: 156,307.32
Step by Step Solution
- Step 1: Write the proportion equation
253,990.08 : 380,985.12 = 104,204.88 : x - Step 2: Convert to fraction form
253,990.08/380,985.12 = 104,204.88/x - Step 3: Cross multiply
253,990.08x = 380,985.12 × 104,204.88 - Step 4: Simplify right side
253,990.08x = 39,700,508,711.39 - Step 5: Solve for x
x = 39,700,508,711.39/253,990.08 - Step 6: Final answer
x = 156,307.32
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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.