Finding the Fourth Proportional to 420,259.84, 579,959.94 and 229,277.23
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Solution
The fourth proportional to 420,259.84, 579,959.94 and 229,277.23 is: 316,403.32
Step by Step Solution
- Step 1: Write the proportion equation
420,259.84 : 579,959.94 = 229,277.23 : x - Step 2: Convert to fraction form
420,259.84/579,959.94 = 229,277.23/x - Step 3: Cross multiply
420,259.84x = 579,959.94 × 229,277.23 - Step 4: Simplify right side
420,259.84x = 132,971,608,554.17 - Step 5: Solve for x
x = 132,971,608,554.17/420,259.84 - Step 6: Final answer
x = 316,403.32
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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.