Finding the Fourth Proportional to 257,457.16, 385,682.96 and 122,328.92
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Solution
The fourth proportional to 257,457.16, 385,682.96 and 122,328.92 is: 183,254.49
Step by Step Solution
- Step 1: Write the proportion equation
257,457.16 : 385,682.96 = 122,328.92 : x - Step 2: Convert to fraction form
257,457.16/385,682.96 = 122,328.92/x - Step 3: Cross multiply
257,457.16x = 385,682.96 × 122,328.92 - Step 4: Simplify right side
257,457.16x = 47,180,179,959.20 - Step 5: Solve for x
x = 47,180,179,959.20/257,457.16 - Step 6: Final answer
x = 183,254.49
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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.