Finding the Fourth Proportional to 458,353.80, 687,530.70 and 192,043.08
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Solution
The fourth proportional to 458,353.80, 687,530.70 and 192,043.08 is: 288,064.62
Step by Step Solution
- Step 1: Write the proportion equation
458,353.80 : 687,530.70 = 192,043.08 : x - Step 2: Convert to fraction form
458,353.80/687,530.70 = 192,043.08/x - Step 3: Cross multiply
458,353.80x = 687,530.70 × 192,043.08 - Step 4: Simplify right side
458,353.80x = 132,035,513,222.56 - Step 5: Solve for x
x = 132,035,513,222.56/458,353.80 - Step 6: Final answer
x = 288,064.62
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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.