Finding the Fourth Proportional to 403,226.13, 556,447.77 and 221,934.18
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Solution
The fourth proportional to 403,226.13, 556,447.77 and 221,934.18 is: 306,266.81
Step by Step Solution
- Step 1: Write the proportion equation
403,226.13 : 556,447.77 = 221,934.18 : x - Step 2: Convert to fraction form
403,226.13/556,447.77 = 221,934.18/x - Step 3: Cross multiply
403,226.13x = 556,447.77 × 221,934.18 - Step 4: Simplify right side
403,226.13x = 123,494,779,547.78 - Step 5: Solve for x
x = 123,494,779,547.78/403,226.13 - Step 6: Final answer
x = 306,266.81
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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.