Finding the Fourth Proportional to 374,690.68, 517,134.36 and 278,533.24
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Solution
The fourth proportional to 374,690.68, 517,134.36 and 278,533.24 is: 384,421.38
Step by Step Solution
- Step 1: Write the proportion equation
374,690.68 : 517,134.36 = 278,533.24 : x - Step 2: Convert to fraction form
374,690.68/517,134.36 = 278,533.24/x - Step 3: Cross multiply
374,690.68x = 517,134.36 × 278,533.24 - Step 4: Simplify right side
374,690.68x = 144,039,108,806.13 - Step 5: Solve for x
x = 144,039,108,806.13/374,690.68 - Step 6: Final answer
x = 384,421.38
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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.