Finding the Fourth Proportional to 268,438.40, 402,663.36 and 97,654.40
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Solution
The fourth proportional to 268,438.40, 402,663.36 and 97,654.40 is: 146,483.70
Step by Step Solution
- Step 1: Write the proportion equation
268,438.40 : 402,663.36 = 97,654.40 : x - Step 2: Convert to fraction form
268,438.40/402,663.36 = 97,654.40/x - Step 3: Cross multiply
268,438.40x = 402,663.36 × 97,654.40 - Step 4: Simplify right side
268,438.40x = 39,321,848,822.78 - Step 5: Solve for x
x = 39,321,848,822.78/268,438.40 - Step 6: Final answer
x = 146,483.70
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1.5x scale
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.