Finding the Fourth Proportional to 651,409.20, 977,113.80 and 208,177.20
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Solution
The fourth proportional to 651,409.20, 977,113.80 and 208,177.20 is: 312,265.80
Step by Step Solution
- Step 1: Write the proportion equation
651,409.20 : 977,113.80 = 208,177.20 : x - Step 2: Convert to fraction form
651,409.20/977,113.80 = 208,177.20/x - Step 3: Cross multiply
651,409.20x = 977,113.80 × 208,177.20 - Step 4: Simplify right side
651,409.20x = 203,412,814,965.36 - Step 5: Solve for x
x = 203,412,814,965.36/651,409.20 - Step 6: Final answer
x = 312,265.80
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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.