Finding the Fourth Proportional to 161,753.70, 242,630.55 and 135,509.70
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Solution
The fourth proportional to 161,753.70, 242,630.55 and 135,509.70 is: 203,264.55
Step by Step Solution
- Step 1: Write the proportion equation
161,753.70 : 242,630.55 = 135,509.70 : x - Step 2: Convert to fraction form
161,753.70/242,630.55 = 135,509.70/x - Step 3: Cross multiply
161,753.70x = 242,630.55 × 135,509.70 - Step 4: Simplify right side
161,753.70x = 32,878,793,041.34 - Step 5: Solve for x
x = 32,878,793,041.34/161,753.70 - Step 6: Final answer
x = 203,264.55
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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.