Finding the Fourth Proportional to 230,587.01, 318,210.50 and 128,619.07
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Solution
The fourth proportional to 230,587.01, 318,210.50 and 128,619.07 is: 177,494.55
Step by Step Solution
- Step 1: Write the proportion equation
230,587.01 : 318,210.50 = 128,619.07 : x - Step 2: Convert to fraction form
230,587.01/318,210.50 = 128,619.07/x - Step 3: Cross multiply
230,587.01x = 318,210.50 × 128,619.07 - Step 4: Simplify right side
230,587.01x = 40,927,938,100.26 - Step 5: Solve for x
x = 40,927,938,100.26/230,587.01 - Step 6: Final answer
x = 177,494.55
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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.