Finding the Fourth Proportional to 493,184.80, 740,122.80 and 212,903.20
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Solution
The fourth proportional to 493,184.80, 740,122.80 and 212,903.20 is: 319,503.99
Step by Step Solution
- Step 1: Write the proportion equation
493,184.80 : 740,122.80 = 212,903.20 : x - Step 2: Convert to fraction form
493,184.80/740,122.80 = 212,903.20/x - Step 3: Cross multiply
493,184.80x = 740,122.80 × 212,903.20 - Step 4: Simplify right side
493,184.80x = 157,574,512,512.96 - Step 5: Solve for x
x = 157,574,512,512.96/493,184.80 - Step 6: Final answer
x = 319,503.99
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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.