Finding the Fourth Proportional to 199,587.60, 299,035.80 and 129,430.80
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Solution
The fourth proportional to 199,587.60, 299,035.80 and 129,430.80 is: 193,922.08
Step by Step Solution
- Step 1: Write the proportion equation
199,587.60 : 299,035.80 = 129,430.80 : x - Step 2: Convert to fraction form
199,587.60/299,035.80 = 129,430.80/x - Step 3: Cross multiply
199,587.60x = 299,035.80 × 129,430.80 - Step 4: Simplify right side
199,587.60x = 38,704,442,822.64 - Step 5: Solve for x
x = 38,704,442,822.64/199,587.60 - Step 6: Final answer
x = 193,922.08
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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.