Finding the Fourth Proportional to 330,656.86, 455,878.18 and 214,163.08
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Solution
The fourth proportional to 330,656.86, 455,878.18 and 214,163.08 is: 295,267.65
Step by Step Solution
- Step 1: Write the proportion equation
330,656.86 : 455,878.18 = 214,163.08 : x - Step 2: Convert to fraction form
330,656.86/455,878.18 = 214,163.08/x - Step 3: Cross multiply
330,656.86x = 455,878.18 × 214,163.08 - Step 4: Simplify right side
330,656.86x = 97,632,275,133.59 - Step 5: Solve for x
x = 97,632,275,133.59/330,656.86 - Step 6: Final answer
x = 295,267.65
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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.