Finding the Fourth Proportional to 469,980.64, 648,555.96 and 255,115.99
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Solution
The fourth proportional to 469,980.64, 648,555.96 and 255,115.99 is: 352,050.66
Step by Step Solution
- Step 1: Write the proportion equation
469,980.64 : 648,555.96 = 255,115.99 : x - Step 2: Convert to fraction form
469,980.64/648,555.96 = 255,115.99/x - Step 3: Cross multiply
469,980.64x = 648,555.96 × 255,115.99 - Step 4: Simplify right side
469,980.64x = 165,456,995,805.80 - Step 5: Solve for x
x = 165,456,995,805.80/469,980.64 - Step 6: Final answer
x = 352,050.66
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.