Finding the Fourth Proportional to 316,171.08, 474,420.24 and 138,802.68
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Solution
The fourth proportional to 316,171.08, 474,420.24 and 138,802.68 is: 208,275.85
Step by Step Solution
- Step 1: Write the proportion equation
316,171.08 : 474,420.24 = 138,802.68 : x - Step 2: Convert to fraction form
316,171.08/474,420.24 = 138,802.68/x - Step 3: Cross multiply
316,171.08x = 474,420.24 × 138,802.68 - Step 4: Simplify right side
316,171.08x = 65,850,800,758.24 - Step 5: Solve for x
x = 65,850,800,758.24/316,171.08 - Step 6: Final answer
x = 208,275.85
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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.