Finding the Fourth Proportional to 313,386.75, 432,478.80 and 177,417.18
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Solution
The fourth proportional to 313,386.75, 432,478.80 and 177,417.18 is: 244,838.59
Step by Step Solution
- Step 1: Write the proportion equation
313,386.75 : 432,478.80 = 177,417.18 : x - Step 2: Convert to fraction form
313,386.75/432,478.80 = 177,417.18/x - Step 3: Cross multiply
313,386.75x = 432,478.80 × 177,417.18 - Step 4: Simplify right side
313,386.75x = 76,729,169,105.78 - Step 5: Solve for x
x = 76,729,169,105.78/313,386.75 - Step 6: Final answer
x = 244,838.59
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.