Finding the Fourth Proportional to 359,207.60, 538,811.40 and 122,817.20
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Solution
The fourth proportional to 359,207.60, 538,811.40 and 122,817.20 is: 184,225.80
Step by Step Solution
- Step 1: Write the proportion equation
359,207.60 : 538,811.40 = 122,817.20 : x - Step 2: Convert to fraction form
359,207.60/538,811.40 = 122,817.20/x - Step 3: Cross multiply
359,207.60x = 538,811.40 × 122,817.20 - Step 4: Simplify right side
359,207.60x = 66,175,307,476.08 - Step 5: Solve for x
x = 66,175,307,476.08/359,207.60 - Step 6: Final answer
x = 184,225.80
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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.