Finding the Fourth Proportional to 165,638.30, 248,483.58 and 70,869.09
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Solution
The fourth proportional to 165,638.30, 248,483.58 and 70,869.09 is: 106,314.82
Step by Step Solution
- Step 1: Write the proportion equation
165,638.30 : 248,483.58 = 70,869.09 : x - Step 2: Convert to fraction form
165,638.30/248,483.58 = 70,869.09/x - Step 3: Cross multiply
165,638.30x = 248,483.58 × 70,869.09 - Step 4: Simplify right side
165,638.30x = 17,609,805,909.81 - Step 5: Solve for x
x = 17,609,805,909.81/165,638.30 - Step 6: Final answer
x = 106,314.82
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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.