Finding the Fourth Proportional to 257,130.60, 386,133.30 and 190,645.80
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Solution
The fourth proportional to 257,130.60, 386,133.30 and 190,645.80 is: 286,293.00
Step by Step Solution
- Step 1: Write the proportion equation
257,130.60 : 386,133.30 = 190,645.80 : x - Step 2: Convert to fraction form
257,130.60/386,133.30 = 190,645.80/x - Step 3: Cross multiply
257,130.60x = 386,133.30 × 190,645.80 - Step 4: Simplify right side
257,130.60x = 73,614,691,885.14 - Step 5: Solve for x
x = 73,614,691,885.14/257,130.60 - Step 6: Final answer
x = 286,293.00
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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.