Finding the Fourth Proportional to 398,325.30, 549,688.98 and 217,037.26
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Solution
The fourth proportional to 398,325.30, 549,688.98 and 217,037.26 is: 299,511.45
Step by Step Solution
- Step 1: Write the proportion equation
398,325.30 : 549,688.98 = 217,037.26 : x - Step 2: Convert to fraction form
398,325.30/549,688.98 = 217,037.26/x - Step 3: Cross multiply
398,325.30x = 549,688.98 × 217,037.26 - Step 4: Simplify right side
398,325.30x = 119,302,988,480.40 - Step 5: Solve for x
x = 119,302,988,480.40/398,325.30 - Step 6: Final answer
x = 299,511.45
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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.