Finding the Fourth Proportional to 157,079.17, 235,479.30 and 57,220.75
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Solution
The fourth proportional to 157,079.17, 235,479.30 and 57,220.75 is: 85,780.32
Step by Step Solution
- Step 1: Write the proportion equation
157,079.17 : 235,479.30 = 57,220.75 : x - Step 2: Convert to fraction form
157,079.17/235,479.30 = 57,220.75/x - Step 3: Cross multiply
157,079.17x = 235,479.30 × 57,220.75 - Step 4: Simplify right side
157,079.17x = 13,474,302,155.48 - Step 5: Solve for x
x = 13,474,302,155.48/157,079.17 - Step 6: Final answer
x = 85,780.32
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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.