Finding the Fourth Proportional to 400,248.20, 552,346.86 and 218,956.24
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Solution
The fourth proportional to 400,248.20, 552,346.86 and 218,956.24 is: 302,161.99
Step by Step Solution
- Step 1: Write the proportion equation
400,248.20 : 552,346.86 = 218,956.24 : x - Step 2: Convert to fraction form
400,248.20/552,346.86 = 218,956.24/x - Step 3: Cross multiply
400,248.20x = 552,346.86 × 218,956.24 - Step 4: Simplify right side
400,248.20x = 120,939,791,641.41 - Step 5: Solve for x
x = 120,939,791,641.41/400,248.20 - Step 6: Final answer
x = 302,161.99
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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.