Finding the Fourth Proportional to 471,987.19, 651,341.18 and 257,129.02
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Solution
The fourth proportional to 471,987.19, 651,341.18 and 257,129.02 is: 354,837.42
Step by Step Solution
- Step 1: Write the proportion equation
471,987.19 : 651,341.18 = 257,129.02 : x - Step 2: Convert to fraction form
471,987.19/651,341.18 = 257,129.02/x - Step 3: Cross multiply
471,987.19x = 651,341.18 × 257,129.02 - Step 4: Simplify right side
471,987.19x = 167,478,714,756.69 - Step 5: Solve for x
x = 167,478,714,756.69/471,987.19 - Step 6: Final answer
x = 354,837.42
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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.