Finding the Fourth Proportional to 515,483.40, 773,208.09 and 211,867.08
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Solution
The fourth proportional to 515,483.40, 773,208.09 and 211,867.08 is: 317,793.63
Step by Step Solution
- Step 1: Write the proportion equation
515,483.40 : 773,208.09 = 211,867.08 : x - Step 2: Convert to fraction form
515,483.40/773,208.09 = 211,867.08/x - Step 3: Cross multiply
515,483.40x = 773,208.09 × 211,867.08 - Step 4: Simplify right side
515,483.40x = 163,817,340,260.68 - Step 5: Solve for x
x = 163,817,340,260.68/515,483.40 - Step 6: Final answer
x = 317,793.63
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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.