Finding the Fourth Proportional to 299,149.10, 411,985.94 and 292,617.26
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Solution
The fourth proportional to 299,149.10, 411,985.94 and 292,617.26 is: 402,990.34
Step by Step Solution
- Step 1: Write the proportion equation
299,149.10 : 411,985.94 = 292,617.26 : x - Step 2: Convert to fraction form
299,149.10/411,985.94 = 292,617.26/x - Step 3: Cross multiply
299,149.10x = 411,985.94 × 292,617.26 - Step 4: Simplify right side
299,149.10x = 120,554,196,921.32 - Step 5: Solve for x
x = 120,554,196,921.32/299,149.10 - Step 6: Final answer
x = 402,990.34
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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.