Finding the Fourth Proportional to 340,883.36, 470,420.51 and 187,918.05
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Solution
The fourth proportional to 340,883.36, 470,420.51 and 187,918.05 is: 259,327.72
Step by Step Solution
- Step 1: Write the proportion equation
340,883.36 : 470,420.51 = 187,918.05 : x - Step 2: Convert to fraction form
340,883.36/470,420.51 = 187,918.05/x - Step 3: Cross multiply
340,883.36x = 470,420.51 × 187,918.05 - Step 4: Simplify right side
340,883.36x = 88,400,505,477.67 - Step 5: Solve for x
x = 88,400,505,477.67/340,883.36 - Step 6: Final answer
x = 259,327.72
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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.