Finding the Fourth Proportional to 283,798.54, 393,332.53 and 278,484.13
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Solution
The fourth proportional to 283,798.54, 393,332.53 and 278,484.13 is: 385,966.99
Step by Step Solution
- Step 1: Write the proportion equation
283,798.54 : 393,332.53 = 278,484.13 : x - Step 2: Convert to fraction form
283,798.54/393,332.53 = 278,484.13/x - Step 3: Cross multiply
283,798.54x = 393,332.53 × 278,484.13 - Step 4: Simplify right side
283,798.54x = 109,536,867,417.75 - Step 5: Solve for x
x = 109,536,867,417.75/283,798.54 - Step 6: Final answer
x = 385,966.99
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.