Finding the Fourth Proportional to 420,224.61, 579,909.18 and 229,237.95
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Solution
The fourth proportional to 420,224.61, 579,909.18 and 229,237.95 is: 316,347.94
Step by Step Solution
- Step 1: Write the proportion equation
420,224.61 : 579,909.18 = 229,237.95 : x - Step 2: Convert to fraction form
420,224.61/579,909.18 = 229,237.95/x - Step 3: Cross multiply
420,224.61x = 579,909.18 × 229,237.95 - Step 4: Simplify right side
420,224.61x = 132,937,191,609.38 - Step 5: Solve for x
x = 132,937,191,609.38/420,224.61 - Step 6: Final answer
x = 316,347.94
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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.