Finding the Fourth Proportional to 398,781.19, 550,298.63 and 237,632.65
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Solution
The fourth proportional to 398,781.19, 550,298.63 and 237,632.65 is: 327,921.49
Step by Step Solution
- Step 1: Write the proportion equation
398,781.19 : 550,298.63 = 237,632.65 : x - Step 2: Convert to fraction form
398,781.19/550,298.63 = 237,632.65/x - Step 3: Cross multiply
398,781.19x = 550,298.63 × 237,632.65 - Step 4: Simplify right side
398,781.19x = 130,768,920,550.11 - Step 5: Solve for x
x = 130,768,920,550.11/398,781.19 - Step 6: Final answer
x = 327,921.49
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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.