Finding the Fourth Proportional to 398,010.76, 549,252.51 and 216,722.26
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Solution
The fourth proportional to 398,010.76, 549,252.51 and 216,722.26 is: 299,075.45
Step by Step Solution
- Step 1: Write the proportion equation
398,010.76 : 549,252.51 = 216,722.26 : x - Step 2: Convert to fraction form
398,010.76/549,252.51 = 216,722.26/x - Step 3: Cross multiply
398,010.76x = 549,252.51 × 216,722.26 - Step 4: Simplify right side
398,010.76x = 119,035,245,277.87 - Step 5: Solve for x
x = 119,035,245,277.87/398,010.76 - Step 6: Final answer
x = 299,075.45
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1.5x scale
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.