Finding the Fourth Proportional to 343,342.12, 473,967.84 and 221,011.06
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Solution
The fourth proportional to 343,342.12, 473,967.84 and 221,011.06 is: 305,095.50
Step by Step Solution
- Step 1: Write the proportion equation
343,342.12 : 473,967.84 = 221,011.06 : x - Step 2: Convert to fraction form
343,342.12/473,967.84 = 221,011.06/x - Step 3: Cross multiply
343,342.12x = 473,967.84 × 221,011.06 - Step 4: Simplify right side
343,342.12x = 104,752,134,724.31 - Step 5: Solve for x
x = 104,752,134,724.31/343,342.12 - Step 6: Final answer
x = 305,095.50
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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.