Finding the Fourth Proportional to 518,457.29, 777,686.03 and 163,499.09
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Solution
The fourth proportional to 518,457.29, 777,686.03 and 163,499.09 is: 245,248.66
Step by Step Solution
- Step 1: Write the proportion equation
518,457.29 : 777,686.03 = 163,499.09 : x - Step 2: Convert to fraction form
518,457.29/777,686.03 = 163,499.09/x - Step 3: Cross multiply
518,457.29x = 777,686.03 × 163,499.09 - Step 4: Simplify right side
518,457.29x = 127,150,953,504.79 - Step 5: Solve for x
x = 127,150,953,504.79/518,457.29 - Step 6: Final answer
x = 245,248.66
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1.5x scale
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.