Finding the Fourth Proportional to 153,484.08, 211,808.40 and 88,965.78
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Solution
The fourth proportional to 153,484.08, 211,808.40 and 88,965.78 is: 122,772.99
Step by Step Solution
- Step 1: Write the proportion equation
153,484.08 : 211,808.40 = 88,965.78 : x - Step 2: Convert to fraction form
153,484.08/211,808.40 = 88,965.78/x - Step 3: Cross multiply
153,484.08x = 211,808.40 × 88,965.78 - Step 4: Simplify right side
153,484.08x = 18,843,699,516.55 - Step 5: Solve for x
x = 18,843,699,516.55/153,484.08 - Step 6: Final answer
x = 122,772.99
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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.