Finding the Fourth Proportional to 420,268.17, 579,946.44 and 239,024.19
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Solution
The fourth proportional to 420,268.17, 579,946.44 and 239,024.19 is: 329,839.94
Step by Step Solution
- Step 1: Write the proportion equation
420,268.17 : 579,946.44 = 239,024.19 : x - Step 2: Convert to fraction form
420,268.17/579,946.44 = 239,024.19/x - Step 3: Cross multiply
420,268.17x = 579,946.44 × 239,024.19 - Step 4: Simplify right side
420,268.17x = 138,621,228,064.38 - Step 5: Solve for x
x = 138,621,228,064.38/420,268.17 - Step 6: Final answer
x = 329,839.94
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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.