Finding the Fourth Proportional to 295,298.10, 442,655.55 and 145,415.70
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Solution
The fourth proportional to 295,298.10, 442,655.55 and 145,415.70 is: 217,979.96
Step by Step Solution
- Step 1: Write the proportion equation
295,298.10 : 442,655.55 = 145,415.70 : x - Step 2: Convert to fraction form
295,298.10/442,655.55 = 145,415.70/x - Step 3: Cross multiply
295,298.10x = 442,655.55 × 145,415.70 - Step 4: Simplify right side
295,298.10x = 64,369,066,662.14 - Step 5: Solve for x
x = 64,369,066,662.14/295,298.10 - Step 6: Final answer
x = 217,979.96
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.