Finding the Fourth Proportional to 398,067.14, 549,307.76 and 219,219.14
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Solution
The fourth proportional to 398,067.14, 549,307.76 and 219,219.14 is: 302,508.70
Step by Step Solution
- Step 1: Write the proportion equation
398,067.14 : 549,307.76 = 219,219.14 : x - Step 2: Convert to fraction form
398,067.14/549,307.76 = 219,219.14/x - Step 3: Cross multiply
398,067.14x = 549,307.76 × 219,219.14 - Step 4: Simplify right side
398,067.14x = 120,418,774,742.53 - Step 5: Solve for x
x = 120,418,774,742.53/398,067.14 - Step 6: Final answer
x = 302,508.70
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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.