Finding the Fourth Proportional to 293,635.78, 440,395.35 and 143,811.70
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Solution
The fourth proportional to 293,635.78, 440,395.35 and 143,811.70 is: 215,688.99
Step by Step Solution
- Step 1: Write the proportion equation
293,635.78 : 440,395.35 = 143,811.70 : x - Step 2: Convert to fraction form
293,635.78/440,395.35 = 143,811.70/x - Step 3: Cross multiply
293,635.78x = 440,395.35 × 143,811.70 - Step 4: Simplify right side
293,635.78x = 63,334,003,955.60 - Step 5: Solve for x
x = 63,334,003,955.60/293,635.78 - Step 6: Final answer
x = 215,688.99
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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.