Finding the Fourth Proportional to 402,374.36, 555,273.96 and 221,088.26
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Solution
The fourth proportional to 402,374.36, 555,273.96 and 221,088.26 is: 305,100.34
Step by Step Solution
- Step 1: Write the proportion equation
402,374.36 : 555,273.96 = 221,088.26 : x - Step 2: Convert to fraction form
402,374.36/555,273.96 = 221,088.26/x - Step 3: Cross multiply
402,374.36x = 555,273.96 × 221,088.26 - Step 4: Simplify right side
402,374.36x = 122,764,553,639.71 - Step 5: Solve for x
x = 122,764,553,639.71/402,374.36 - Step 6: Final answer
x = 305,100.34
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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.