Finding the Fourth Proportional to 299,260.81, 448,886.74 and 139,247.13
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Solution
The fourth proportional to 299,260.81, 448,886.74 and 139,247.13 is: 208,868.61
Step by Step Solution
- Step 1: Write the proportion equation
299,260.81 : 448,886.74 = 139,247.13 : x - Step 2: Convert to fraction form
299,260.81/448,886.74 = 139,247.13/x - Step 3: Cross multiply
299,260.81x = 448,886.74 × 139,247.13 - Step 4: Simplify right side
299,260.81x = 62,506,190,240.06 - Step 5: Solve for x
x = 62,506,190,240.06/299,260.81 - Step 6: Final answer
x = 208,868.61
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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.