Finding the Fourth Proportional to 398,025.98, 549,267.96 and 216,740.06
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Solution
The fourth proportional to 398,025.98, 549,267.96 and 216,740.06 is: 299,096.99
Step by Step Solution
- Step 1: Write the proportion equation
398,025.98 : 549,267.96 = 216,740.06 : x - Step 2: Convert to fraction form
398,025.98/549,267.96 = 216,740.06/x - Step 3: Cross multiply
398,025.98x = 549,267.96 × 216,740.06 - Step 4: Simplify right side
398,025.98x = 119,048,370,606.48 - Step 5: Solve for x
x = 119,048,370,606.48/398,025.98 - Step 6: Final answer
x = 299,096.99
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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.