Finding the Fourth Proportional to 162,742.72, 242,682.08 and 149,817.28
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Solution
The fourth proportional to 162,742.72, 242,682.08 and 149,817.28 is: 223,407.65
Step by Step Solution
- Step 1: Write the proportion equation
162,742.72 : 242,682.08 = 149,817.28 : x - Step 2: Convert to fraction form
162,742.72/242,682.08 = 149,817.28/x - Step 3: Cross multiply
162,742.72x = 242,682.08 × 149,817.28 - Step 4: Simplify right side
162,742.72x = 36,357,969,130.34 - Step 5: Solve for x
x = 36,357,969,130.34/162,742.72 - Step 6: Final answer
x = 223,407.65
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.