Finding the Fourth Proportional to 349,808.10, 524,712.15 and 128,163.30
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Solution
The fourth proportional to 349,808.10, 524,712.15 and 128,163.30 is: 192,244.95
Step by Step Solution
- Step 1: Write the proportion equation
349,808.10 : 524,712.15 = 128,163.30 : x - Step 2: Convert to fraction form
349,808.10/524,712.15 = 128,163.30/x - Step 3: Cross multiply
349,808.10x = 524,712.15 × 128,163.30 - Step 4: Simplify right side
349,808.10x = 67,248,840,694.10 - Step 5: Solve for x
x = 67,248,840,694.10/349,808.10 - Step 6: Final answer
x = 192,244.95
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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.