Finding the Fourth Proportional to 153,246.40, 229,934.40 and 97,129.60
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Solution
The fourth proportional to 153,246.40, 229,934.40 and 97,129.60 is: 145,735.47
Step by Step Solution
- Step 1: Write the proportion equation
153,246.40 : 229,934.40 = 97,129.60 : x - Step 2: Convert to fraction form
153,246.40/229,934.40 = 97,129.60/x - Step 3: Cross multiply
153,246.40x = 229,934.40 × 97,129.60 - Step 4: Simplify right side
153,246.40x = 22,333,436,298.24 - Step 5: Solve for x
x = 22,333,436,298.24/153,246.40 - Step 6: Final answer
x = 145,735.47
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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.