Finding the Fourth Proportional to 313,521.84, 432,659.98 and 177,555.74
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Solution
The fourth proportional to 313,521.84, 432,659.98 and 177,555.74 is: 245,026.83
Step by Step Solution
- Step 1: Write the proportion equation
313,521.84 : 432,659.98 = 177,555.74 : x - Step 2: Convert to fraction form
313,521.84/432,659.98 = 177,555.74/x - Step 3: Cross multiply
313,521.84x = 432,659.98 × 177,555.74 - Step 4: Simplify right side
313,521.84x = 76,821,262,917.29 - Step 5: Solve for x
x = 76,821,262,917.29/313,521.84 - Step 6: Final answer
x = 245,026.83
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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.