Finding the Fourth Proportional to 291,319.47, 402,014.68 and 162,257.54
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Solution
The fourth proportional to 291,319.47, 402,014.68 and 162,257.54 is: 223,911.96
Step by Step Solution
- Step 1: Write the proportion equation
291,319.47 : 402,014.68 = 162,257.54 : x - Step 2: Convert to fraction form
291,319.47/402,014.68 = 162,257.54/x - Step 3: Cross multiply
291,319.47x = 402,014.68 × 162,257.54 - Step 4: Simplify right side
291,319.47x = 65,229,913,620.08 - Step 5: Solve for x
x = 65,229,913,620.08/291,319.47 - Step 6: Final answer
x = 223,911.96
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1.5x scale
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.