Finding the Fourth Proportional to 613,269.80, 919,904.70 and 163,989.80
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Solution
The fourth proportional to 613,269.80, 919,904.70 and 163,989.80 is: 245,984.70
Step by Step Solution
- Step 1: Write the proportion equation
613,269.80 : 919,904.70 = 163,989.80 : x - Step 2: Convert to fraction form
613,269.80/919,904.70 = 163,989.80/x - Step 3: Cross multiply
613,269.80x = 919,904.70 × 163,989.80 - Step 4: Simplify right side
613,269.80x = 150,854,987,772.06 - Step 5: Solve for x
x = 150,854,987,772.06/613,269.80 - Step 6: Final answer
x = 245,984.70
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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.