Finding the Fourth Proportional to 315,407.20, 473,110.80 and 203,432.80
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Solution
The fourth proportional to 315,407.20, 473,110.80 and 203,432.80 is: 305,149.20
Step by Step Solution
- Step 1: Write the proportion equation
315,407.20 : 473,110.80 = 203,432.80 : x - Step 2: Convert to fraction form
315,407.20/473,110.80 = 203,432.80/x - Step 3: Cross multiply
315,407.20x = 473,110.80 × 203,432.80 - Step 4: Simplify right side
315,407.20x = 96,246,254,754.24 - Step 5: Solve for x
x = 96,246,254,754.24/315,407.20 - Step 6: Final answer
x = 305,149.20
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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.