Finding the Fourth Proportional to 539,746.80, 809,620.20 and 165,721.20
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Solution
The fourth proportional to 539,746.80, 809,620.20 and 165,721.20 is: 248,581.80
Step by Step Solution
- Step 1: Write the proportion equation
539,746.80 : 809,620.20 = 165,721.20 : x - Step 2: Convert to fraction form
539,746.80/809,620.20 = 165,721.20/x - Step 3: Cross multiply
539,746.80x = 809,620.20 × 165,721.20 - Step 4: Simplify right side
539,746.80x = 134,171,231,088.24 - Step 5: Solve for x
x = 134,171,231,088.24/539,746.80 - Step 6: Final answer
x = 248,581.80
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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.