Finding the Fourth Proportional to 286,970.99, 395,855.12 and 179,354.20
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Solution
The fourth proportional to 286,970.99, 395,855.12 and 179,354.20 is: 247,405.76
Step by Step Solution
- Step 1: Write the proportion equation
286,970.99 : 395,855.12 = 179,354.20 : x - Step 2: Convert to fraction form
286,970.99/395,855.12 = 179,354.20/x - Step 3: Cross multiply
286,970.99x = 395,855.12 × 179,354.20 - Step 4: Simplify right side
286,970.99x = 70,998,275,487.46 - Step 5: Solve for x
x = 70,998,275,487.46/286,970.99 - Step 6: Final answer
x = 247,405.76
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.