Finding the Fourth Proportional to 480,115.08, 720,173.16 and 125,128.80
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Solution
The fourth proportional to 480,115.08, 720,173.16 and 125,128.80 is: 187,693.34
Step by Step Solution
- Step 1: Write the proportion equation
480,115.08 : 720,173.16 = 125,128.80 : x - Step 2: Convert to fraction form
480,115.08/720,173.16 = 125,128.80/x - Step 3: Cross multiply
480,115.08x = 720,173.16 × 125,128.80 - Step 4: Simplify right side
480,115.08x = 90,114,403,303.01 - Step 5: Solve for x
x = 90,114,403,303.01/480,115.08 - Step 6: Final answer
x = 187,693.34
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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.