Finding the Fourth Proportional to 398,036.57, 549,277.74 and 216,747.09
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Solution
The fourth proportional to 398,036.57, 549,277.74 and 216,747.09 is: 299,104.06
Step by Step Solution
- Step 1: Write the proportion equation
398,036.57 : 549,277.74 = 216,747.09 : x - Step 2: Convert to fraction form
398,036.57/549,277.74 = 216,747.09/x - Step 3: Cross multiply
398,036.57x = 549,277.74 × 216,747.09 - Step 4: Simplify right side
398,036.57x = 119,054,351,746.78 - Step 5: Solve for x
x = 119,054,351,746.78/398,036.57 - Step 6: Final answer
x = 299,104.06
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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.