Finding the Fourth Proportional to 316,537.80, 474,806.70 and 94,921.80
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Solution
The fourth proportional to 316,537.80, 474,806.70 and 94,921.80 is: 142,382.70
Step by Step Solution
- Step 1: Write the proportion equation
316,537.80 : 474,806.70 = 94,921.80 : x - Step 2: Convert to fraction form
316,537.80/474,806.70 = 94,921.80/x - Step 3: Cross multiply
316,537.80x = 474,806.70 × 94,921.80 - Step 4: Simplify right side
316,537.80x = 45,069,506,616.06 - Step 5: Solve for x
x = 45,069,506,616.06/316,537.80 - Step 6: Final answer
x = 142,382.70
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1.5x scale
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.