Finding the Fourth Proportional to 307,157.14, 423,911.28 and 171,203.50
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Solution
The fourth proportional to 307,157.14, 423,911.28 and 171,203.50 is: 236,280.02
Step by Step Solution
- Step 1: Write the proportion equation
307,157.14 : 423,911.28 = 171,203.50 : x - Step 2: Convert to fraction form
307,157.14/423,911.28 = 171,203.50/x - Step 3: Cross multiply
307,157.14x = 423,911.28 × 171,203.50 - Step 4: Simplify right side
307,157.14x = 72,575,094,825.48 - Step 5: Solve for x
x = 72,575,094,825.48/307,157.14 - Step 6: Final answer
x = 236,280.02
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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.