Finding the Fourth Proportional to 368,132.01, 507,814.68 and 220,918.80
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Solution
The fourth proportional to 368,132.01, 507,814.68 and 220,918.80 is: 304,743.43
Step by Step Solution
- Step 1: Write the proportion equation
368,132.01 : 507,814.68 = 220,918.80 : x - Step 2: Convert to fraction form
368,132.01/507,814.68 = 220,918.80/x - Step 3: Cross multiply
368,132.01x = 507,814.68 × 220,918.80 - Step 4: Simplify right side
368,132.01x = 112,185,809,727.98 - Step 5: Solve for x
x = 112,185,809,727.98/368,132.01 - Step 6: Final answer
x = 304,743.43
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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.