Finding the Fourth Proportional to 387,731.99, 581,598.18 and 121,513.34
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Solution
The fourth proportional to 387,731.99, 581,598.18 and 121,513.34 is: 182,270.07
Step by Step Solution
- Step 1: Write the proportion equation
387,731.99 : 581,598.18 = 121,513.34 : x - Step 2: Convert to fraction form
387,731.99/581,598.18 = 121,513.34/x - Step 3: Cross multiply
387,731.99x = 581,598.18 × 121,513.34 - Step 4: Simplify right side
387,731.99x = 70,671,934,481.73 - Step 5: Solve for x
x = 70,671,934,481.73/387,731.99 - Step 6: Final answer
x = 182,270.07
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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.