Finding the Fourth Proportional to 286,508.13, 429,959.63 and 99,519.63
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Solution
The fourth proportional to 286,508.13, 429,959.63 and 99,519.63 is: 149,348.02
Step by Step Solution
- Step 1: Write the proportion equation
286,508.13 : 429,959.63 = 99,519.63 : x - Step 2: Convert to fraction form
286,508.13/429,959.63 = 99,519.63/x - Step 3: Cross multiply
286,508.13x = 429,959.63 × 99,519.63 - Step 4: Simplify right side
286,508.13x = 42,789,423,292.54 - Step 5: Solve for x
x = 42,789,423,292.54/286,508.13 - Step 6: Final answer
x = 149,348.02
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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.