Finding the Fourth Proportional to 450,115.16, 621,235.30 and 259,239.06
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Solution
The fourth proportional to 450,115.16, 621,235.30 and 259,239.06 is: 357,793.89
Step by Step Solution
- Step 1: Write the proportion equation
450,115.16 : 621,235.30 = 259,239.06 : x - Step 2: Convert to fraction form
450,115.16/621,235.30 = 259,239.06/x - Step 3: Cross multiply
450,115.16x = 621,235.30 × 259,239.06 - Step 4: Simplify right side
450,115.16x = 161,048,455,210.82 - Step 5: Solve for x
x = 161,048,455,210.82/450,115.16 - Step 6: Final answer
x = 357,793.89
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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.