Finding the Fourth Proportional to 316,911.80, 475,267.35 and 103,630.44
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Solution
The fourth proportional to 316,911.80, 475,267.35 and 103,630.44 is: 155,412.85
Step by Step Solution
- Step 1: Write the proportion equation
316,911.80 : 475,267.35 = 103,630.44 : x - Step 2: Convert to fraction form
316,911.80/475,267.35 = 103,630.44/x - Step 3: Cross multiply
316,911.80x = 475,267.35 × 103,630.44 - Step 4: Simplify right side
316,911.80x = 49,252,164,598.13 - Step 5: Solve for x
x = 49,252,164,598.13/316,911.80 - Step 6: Final answer
x = 155,412.85
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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.