Finding the Fourth Proportional to 368,805.12, 508,924.80 and 207,669.12
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Solution
The fourth proportional to 368,805.12, 508,924.80 and 207,669.12 is: 286,568.60
Step by Step Solution
- Step 1: Write the proportion equation
368,805.12 : 508,924.80 = 207,669.12 : x - Step 2: Convert to fraction form
368,805.12/508,924.80 = 207,669.12/x - Step 3: Cross multiply
368,805.12x = 508,924.80 × 207,669.12 - Step 4: Simplify right side
368,805.12x = 105,687,965,362.18 - Step 5: Solve for x
x = 105,687,965,362.18/368,805.12 - Step 6: Final answer
x = 286,568.60
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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.