Finding the Fourth Proportional to 286,357.36, 429,346.48 and 136,620.76
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Solution
The fourth proportional to 286,357.36, 429,346.48 and 136,620.76 is: 204,840.70
Step by Step Solution
- Step 1: Write the proportion equation
286,357.36 : 429,346.48 = 136,620.76 : x - Step 2: Convert to fraction form
286,357.36/429,346.48 = 136,620.76/x - Step 3: Cross multiply
286,357.36x = 429,346.48 × 136,620.76 - Step 4: Simplify right side
286,357.36x = 58,657,642,400.92 - Step 5: Solve for x
x = 58,657,642,400.92/286,357.36 - Step 6: Final answer
x = 204,840.70
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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.