Finding the Fourth Proportional to 402,412.76, 555,360.49 and 230,384.68
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Solution
The fourth proportional to 402,412.76, 555,360.49 and 230,384.68 is: 317,948.54
Step by Step Solution
- Step 1: Write the proportion equation
402,412.76 : 555,360.49 = 230,384.68 : x - Step 2: Convert to fraction form
402,412.76/555,360.49 = 230,384.68/x - Step 3: Cross multiply
402,412.76x = 555,360.49 × 230,384.68 - Step 4: Simplify right side
402,412.76x = 127,946,546,199.60 - Step 5: Solve for x
x = 127,946,546,199.60/402,412.76 - Step 6: Final answer
x = 317,948.54
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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.