Finding the Fourth Proportional to 286,356.14, 429,532.65 and 70,212.19
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Solution
The fourth proportional to 286,356.14, 429,532.65 and 70,212.19 is: 105,317.91
Step by Step Solution
- Step 1: Write the proportion equation
286,356.14 : 429,532.65 = 70,212.19 : x - Step 2: Convert to fraction form
286,356.14/429,532.65 = 70,212.19/x - Step 3: Cross multiply
286,356.14x = 429,532.65 × 70,212.19 - Step 4: Simplify right side
286,356.14x = 30,158,428,775.13 - Step 5: Solve for x
x = 30,158,428,775.13/286,356.14 - Step 6: Final answer
x = 105,317.91
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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.