Finding the Fourth Proportional to 409,268.08, 564,781.44 and 227,979.76
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Solution
The fourth proportional to 409,268.08, 564,781.44 and 227,979.76 is: 314,607.33
Step by Step Solution
- Step 1: Write the proportion equation
409,268.08 : 564,781.44 = 227,979.76 : x - Step 2: Convert to fraction form
409,268.08/564,781.44 = 227,979.76/x - Step 3: Cross multiply
409,268.08x = 564,781.44 × 227,979.76 - Step 4: Simplify right side
409,268.08x = 128,758,737,143.65 - Step 5: Solve for x
x = 128,758,737,143.65/409,268.08 - Step 6: Final answer
x = 314,607.33
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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.