Finding the Fourth Proportional to 305,869.05, 458,803.58 and 286,186.05
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Solution
The fourth proportional to 305,869.05, 458,803.58 and 286,186.05 is: 429,279.08
Step by Step Solution
- Step 1: Write the proportion equation
305,869.05 : 458,803.58 = 286,186.05 : x - Step 2: Convert to fraction form
305,869.05/458,803.58 = 286,186.05/x - Step 3: Cross multiply
305,869.05x = 458,803.58 × 286,186.05 - Step 4: Simplify right side
305,869.05x = 131,303,182,855.13 - Step 5: Solve for x
x = 131,303,182,855.13/305,869.05 - Step 6: Final answer
x = 429,279.08
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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.