Finding the Fourth Proportional to 216,263.02, 298,430.60 and 129,146.44
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Solution
The fourth proportional to 216,263.02, 298,430.60 and 129,146.44 is: 178,214.70
Step by Step Solution
- Step 1: Write the proportion equation
216,263.02 : 298,430.60 = 129,146.44 : x - Step 2: Convert to fraction form
216,263.02/298,430.60 = 129,146.44/x - Step 3: Cross multiply
216,263.02x = 298,430.60 × 129,146.44 - Step 4: Simplify right side
216,263.02x = 38,541,249,577.06 - Step 5: Solve for x
x = 38,541,249,577.06/216,263.02 - Step 6: Final answer
x = 178,214.70
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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.