Finding the Fourth Proportional to 630,129.84, 945,181.80 and 209,409.84
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Solution
The fourth proportional to 630,129.84, 945,181.80 and 209,409.84 is: 314,110.45
Step by Step Solution
- Step 1: Write the proportion equation
630,129.84 : 945,181.80 = 209,409.84 : x - Step 2: Convert to fraction form
630,129.84/945,181.80 = 209,409.84/x - Step 3: Cross multiply
630,129.84x = 945,181.80 × 209,409.84 - Step 4: Simplify right side
630,129.84x = 197,930,369,508.91 - Step 5: Solve for x
x = 197,930,369,508.91/630,129.84 - Step 6: Final answer
x = 314,110.45
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1.5x scale
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.