Finding the Fourth Proportional to 403,248.13, 556,478.04 and 221,956.18
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Solution
The fourth proportional to 403,248.13, 556,478.04 and 221,956.18 is: 306,297.12
Step by Step Solution
- Step 1: Write the proportion equation
403,248.13 : 556,478.04 = 221,956.18 : x - Step 2: Convert to fraction form
403,248.13/556,478.04 = 221,956.18/x - Step 3: Cross multiply
403,248.13x = 556,478.04 × 221,956.18 - Step 4: Simplify right side
403,248.13x = 123,513,740,012.29 - Step 5: Solve for x
x = 123,513,740,012.29/403,248.13 - Step 6: Final answer
x = 306,297.12
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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.