Finding the Fourth Proportional to 239,291.13, 330,220.34 and 130,395.27
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Solution
The fourth proportional to 239,291.13, 330,220.34 and 130,395.27 is: 179,944.69
Step by Step Solution
- Step 1: Write the proportion equation
239,291.13 : 330,220.34 = 130,395.27 : x - Step 2: Convert to fraction form
239,291.13/330,220.34 = 130,395.27/x - Step 3: Cross multiply
239,291.13x = 330,220.34 × 130,395.27 - Step 4: Simplify right side
239,291.13x = 43,059,168,090.71 - Step 5: Solve for x
x = 43,059,168,090.71/239,291.13 - Step 6: Final answer
x = 179,944.69
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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.