Finding the Fourth Proportional to 420,203.21, 630,219.76 and 153,872.78
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Solution
The fourth proportional to 420,203.21, 630,219.76 and 153,872.78 is: 230,778.02
Step by Step Solution
- Step 1: Write the proportion equation
420,203.21 : 630,219.76 = 153,872.78 : x - Step 2: Convert to fraction form
420,203.21/630,219.76 = 153,872.78/x - Step 3: Cross multiply
420,203.21x = 630,219.76 × 153,872.78 - Step 4: Simplify right side
420,203.21x = 96,973,662,946.35 - Step 5: Solve for x
x = 96,973,662,946.35/420,203.21 - Step 6: Final answer
x = 230,778.02
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.