Finding the Fourth Proportional to 171,683.70, 257,525.55 and 145,763.70
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Solution
The fourth proportional to 171,683.70, 257,525.55 and 145,763.70 is: 218,645.55
Step by Step Solution
- Step 1: Write the proportion equation
171,683.70 : 257,525.55 = 145,763.70 : x - Step 2: Convert to fraction form
171,683.70/257,525.55 = 145,763.70/x - Step 3: Cross multiply
171,683.70x = 257,525.55 × 145,763.70 - Step 4: Simplify right side
171,683.70x = 37,537,877,012.54 - Step 5: Solve for x
x = 37,537,877,012.54/171,683.70 - Step 6: Final answer
x = 218,645.55
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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.