Finding the Fourth Proportional to 245,330.70, 368,980.20 and 219,742.80
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Solution
The fourth proportional to 245,330.70, 368,980.20 and 219,742.80 is: 330,495.70
Step by Step Solution
- Step 1: Write the proportion equation
245,330.70 : 368,980.20 = 219,742.80 : x - Step 2: Convert to fraction form
245,330.70/368,980.20 = 219,742.80/x - Step 3: Cross multiply
245,330.70x = 368,980.20 × 219,742.80 - Step 4: Simplify right side
245,330.70x = 81,080,742,292.56 - Step 5: Solve for x
x = 81,080,742,292.56/245,330.70 - Step 6: Final answer
x = 330,495.70
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.