Finding the Fourth Proportional to 368,819.12, 508,944.12 and 207,683.12
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Solution
The fourth proportional to 368,819.12, 508,944.12 and 207,683.12 is: 286,587.92
Step by Step Solution
- Step 1: Write the proportion equation
368,819.12 : 508,944.12 = 207,683.12 : x - Step 2: Convert to fraction form
368,819.12/508,944.12 = 207,683.12/x - Step 3: Cross multiply
368,819.12x = 508,944.12 × 207,683.12 - Step 4: Simplify right side
368,819.12x = 105,699,102,747.25 - Step 5: Solve for x
x = 105,699,102,747.25/368,819.12 - Step 6: Final answer
x = 286,587.92
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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.