Finding the Fourth Proportional to 311,723.02, 430,177.66 and 168,483.07
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Solution
The fourth proportional to 311,723.02, 430,177.66 and 168,483.07 is: 232,506.58
Step by Step Solution
- Step 1: Write the proportion equation
311,723.02 : 430,177.66 = 168,483.07 : x - Step 2: Convert to fraction form
311,723.02/430,177.66 = 168,483.07/x - Step 3: Cross multiply
311,723.02x = 430,177.66 × 168,483.07 - Step 4: Simplify right side
311,723.02x = 72,477,652,802.22 - Step 5: Solve for x
x = 72,477,652,802.22/311,723.02 - Step 6: Final answer
x = 232,506.58
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.