Finding the Fourth Proportional to 260,021.70, 390,070.35 and 110,261.70
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Solution
The fourth proportional to 260,021.70, 390,070.35 and 110,261.70 is: 165,408.58
Step by Step Solution
- Step 1: Write the proportion equation
260,021.70 : 390,070.35 = 110,261.70 : x - Step 2: Convert to fraction form
260,021.70/390,070.35 = 110,261.70/x - Step 3: Cross multiply
260,021.70x = 390,070.35 × 110,261.70 - Step 4: Simplify right side
260,021.70x = 43,009,819,910.60 - Step 5: Solve for x
x = 43,009,819,910.60/260,021.70 - Step 6: Final answer
x = 165,408.58
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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.