Finding the Fourth Proportional to 240,030.05, 331,251.53 and 138,055.53
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Solution
The fourth proportional to 240,030.05, 331,251.53 and 138,055.53 is: 190,522.42
Step by Step Solution
- Step 1: Write the proportion equation
240,030.05 : 331,251.53 = 138,055.53 : x - Step 2: Convert to fraction form
240,030.05/331,251.53 = 138,055.53/x - Step 3: Cross multiply
240,030.05x = 331,251.53 × 138,055.53 - Step 4: Simplify right side
240,030.05x = 45,731,104,847.18 - Step 5: Solve for x
x = 45,731,104,847.18/240,030.05 - Step 6: Final answer
x = 190,522.42
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.