Finding the Fourth Proportional to 230,587.02, 318,210.53 and 128,619.09
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Solution
The fourth proportional to 230,587.02, 318,210.53 and 128,619.09 is: 177,494.59
Step by Step Solution
- Step 1: Write the proportion equation
230,587.02 : 318,210.53 = 128,619.09 : x - Step 2: Convert to fraction form
230,587.02/318,210.53 = 128,619.09/x - Step 3: Cross multiply
230,587.02x = 318,210.53 × 128,619.09 - Step 4: Simplify right side
230,587.02x = 40,927,948,797.02 - Step 5: Solve for x
x = 40,927,948,797.02/230,587.02 - Step 6: Final answer
x = 177,494.59
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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.