Finding the Fourth Proportional to 495,278.70, 742,918.05 and 121,301.70
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Solution
The fourth proportional to 495,278.70, 742,918.05 and 121,301.70 is: 181,952.55
Step by Step Solution
- Step 1: Write the proportion equation
495,278.70 : 742,918.05 = 121,301.70 : x - Step 2: Convert to fraction form
495,278.70/742,918.05 = 121,301.70/x - Step 3: Cross multiply
495,278.70x = 742,918.05 × 121,301.70 - Step 4: Simplify right side
495,278.70x = 90,117,222,425.69 - Step 5: Solve for x
x = 90,117,222,425.69/495,278.70 - Step 6: Final answer
x = 181,952.55
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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.