Finding the Fourth Proportional to 408,560.24, 612,856.84 and 142,347.72
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Solution
The fourth proportional to 408,560.24, 612,856.84 and 142,347.72 is: 213,527.32
Step by Step Solution
- Step 1: Write the proportion equation
408,560.24 : 612,856.84 = 142,347.72 : x - Step 2: Convert to fraction form
408,560.24/612,856.84 = 142,347.72/x - Step 3: Cross multiply
408,560.24x = 612,856.84 × 142,347.72 - Step 4: Simplify right side
408,560.24x = 87,238,773,860.40 - Step 5: Solve for x
x = 87,238,773,860.40/408,560.24 - Step 6: Final answer
x = 213,527.32
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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.