Finding the Fourth Proportional to 370,267.20, 555,400.80 and 212,803.20
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Solution
The fourth proportional to 370,267.20, 555,400.80 and 212,803.20 is: 319,204.80
Step by Step Solution
- Step 1: Write the proportion equation
370,267.20 : 555,400.80 = 212,803.20 : x - Step 2: Convert to fraction form
370,267.20/555,400.80 = 212,803.20/x - Step 3: Cross multiply
370,267.20x = 555,400.80 × 212,803.20 - Step 4: Simplify right side
370,267.20x = 118,191,067,522.56 - Step 5: Solve for x
x = 118,191,067,522.56/370,267.20 - Step 6: Final answer
x = 319,204.80
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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.