Finding the Fourth Proportional to 145,432.80, 217,987.20 and 56,656.80
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Solution
The fourth proportional to 145,432.80, 217,987.20 and 56,656.80 is: 84,922.09
Step by Step Solution
- Step 1: Write the proportion equation
145,432.80 : 217,987.20 = 56,656.80 : x - Step 2: Convert to fraction form
145,432.80/217,987.20 = 56,656.80/x - Step 3: Cross multiply
145,432.80x = 217,987.20 × 56,656.80 - Step 4: Simplify right side
145,432.80x = 12,350,457,192.96 - Step 5: Solve for x
x = 12,350,457,192.96/145,432.80 - Step 6: Final answer
x = 84,922.09
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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.