Finding the Fourth Proportional to 398,347.08, 549,732.87 and 217,073.94
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Solution
The fourth proportional to 398,347.08, 549,732.87 and 217,073.94 is: 299,569.61
Step by Step Solution
- Step 1: Write the proportion equation
398,347.08 : 549,732.87 = 217,073.94 : x - Step 2: Convert to fraction form
398,347.08/549,732.87 = 217,073.94/x - Step 3: Cross multiply
398,347.08x = 549,732.87 × 217,073.94 - Step 4: Simplify right side
398,347.08x = 119,332,680,038.41 - Step 5: Solve for x
x = 119,332,680,038.41/398,347.08 - Step 6: Final answer
x = 299,569.61
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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.