Finding the Fourth Proportional to 420,497.64, 630,371.34 and 154,195.92
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Solution
The fourth proportional to 420,497.64, 630,371.34 and 154,195.92 is: 231,156.32
Step by Step Solution
- Step 1: Write the proportion equation
420,497.64 : 630,371.34 = 154,195.92 : x - Step 2: Convert to fraction form
420,497.64/630,371.34 = 154,195.92/x - Step 3: Cross multiply
420,497.64x = 630,371.34 × 154,195.92 - Step 4: Simplify right side
420,497.64x = 97,200,688,712.93 - Step 5: Solve for x
x = 97,200,688,712.93/420,497.64 - Step 6: Final answer
x = 231,156.32
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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.