Finding the Fourth Proportional to 403,176.36, 556,417.98 and 221,924.28
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Solution
The fourth proportional to 403,176.36, 556,417.98 and 221,924.28 is: 306,274.55
Step by Step Solution
- Step 1: Write the proportion equation
403,176.36 : 556,417.98 = 221,924.28 : x - Step 2: Convert to fraction form
403,176.36/556,417.98 = 221,924.28/x - Step 3: Cross multiply
403,176.36x = 556,417.98 × 221,924.28 - Step 4: Simplify right side
403,176.36x = 123,482,659,590.55 - Step 5: Solve for x
x = 123,482,659,590.55/403,176.36 - Step 6: Final answer
x = 306,274.55
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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.