Finding the Fourth Proportional to 316,172.08, 474,421.74 and 138,803.68
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Solution
The fourth proportional to 316,172.08, 474,421.74 and 138,803.68 is: 208,277.35
Step by Step Solution
- Step 1: Write the proportion equation
316,172.08 : 474,421.74 = 138,803.68 : x - Step 2: Convert to fraction form
316,172.08/474,421.74 = 138,803.68/x - Step 3: Cross multiply
316,172.08x = 474,421.74 × 138,803.68 - Step 4: Simplify right side
316,172.08x = 65,851,483,384.00 - Step 5: Solve for x
x = 65,851,483,384.00/316,172.08 - Step 6: Final answer
x = 208,277.35
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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.