Finding the Fourth Proportional to 473,318.40, 709,804.80 and 157,785.60
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Solution
The fourth proportional to 473,318.40, 709,804.80 and 157,785.60 is: 236,620.80
Step by Step Solution
- Step 1: Write the proportion equation
473,318.40 : 709,804.80 = 157,785.60 : x - Step 2: Convert to fraction form
473,318.40/709,804.80 = 157,785.60/x - Step 3: Cross multiply
473,318.40x = 709,804.80 × 157,785.60 - Step 4: Simplify right side
473,318.40x = 111,996,976,250.88 - Step 5: Solve for x
x = 111,996,976,250.88/473,318.40 - Step 6: Final answer
x = 236,620.80
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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.