Finding the Fourth Proportional to 402,917.13, 555,985.79 and 230,802.05
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Solution
The fourth proportional to 402,917.13, 555,985.79 and 230,802.05 is: 318,484.01
Step by Step Solution
- Step 1: Write the proportion equation
402,917.13 : 555,985.79 = 230,802.05 : x - Step 2: Convert to fraction form
402,917.13/555,985.79 = 230,802.05/x - Step 3: Cross multiply
402,917.13x = 555,985.79 × 230,802.05 - Step 4: Simplify right side
402,917.13x = 128,322,662,069.84 - Step 5: Solve for x
x = 128,322,662,069.84/402,917.13 - Step 6: Final answer
x = 318,484.01
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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.