Finding the Fourth Proportional to 317,970.39, 477,003.99 and 197,930.21
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Solution
The fourth proportional to 317,970.39, 477,003.99 and 197,930.21 is: 296,925.45
Step by Step Solution
- Step 1: Write the proportion equation
317,970.39 : 477,003.99 = 197,930.21 : x - Step 2: Convert to fraction form
317,970.39/477,003.99 = 197,930.21/x - Step 3: Cross multiply
317,970.39x = 477,003.99 × 197,930.21 - Step 4: Simplify right side
317,970.39x = 94,413,499,911.54 - Step 5: Solve for x
x = 94,413,499,911.54/317,970.39 - Step 6: Final answer
x = 296,925.45
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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.