Finding the Fourth Proportional to 216,870.36, 299,312.64 and 124,971.84
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Solution
The fourth proportional to 216,870.36, 299,312.64 and 124,971.84 is: 172,479.32
Step by Step Solution
- Step 1: Write the proportion equation
216,870.36 : 299,312.64 = 124,971.84 : x - Step 2: Convert to fraction form
216,870.36/299,312.64 = 124,971.84/x - Step 3: Cross multiply
216,870.36x = 299,312.64 × 124,971.84 - Step 4: Simplify right side
216,870.36x = 37,405,651,356.06 - Step 5: Solve for x
x = 37,405,651,356.06/216,870.36 - Step 6: Final answer
x = 172,479.32
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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.