Finding the Fourth Proportional to 644,663.12, 966,905.36 and 171,386.96
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Solution
The fourth proportional to 644,663.12, 966,905.36 and 171,386.96 is: 257,056.69
Step by Step Solution
- Step 1: Write the proportion equation
644,663.12 : 966,905.36 = 171,386.96 : x - Step 2: Convert to fraction form
644,663.12/966,905.36 = 171,386.96/x - Step 3: Cross multiply
644,663.12x = 966,905.36 × 171,386.96 - Step 4: Simplify right side
644,663.12x = 165,714,970,258.11 - Step 5: Solve for x
x = 165,714,970,258.11/644,663.12 - Step 6: Final answer
x = 257,056.69
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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.