Finding the Fourth Proportional to 420,225.05, 579,909.38 and 229,237.08
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Solution
The fourth proportional to 420,225.05, 579,909.38 and 229,237.08 is: 316,346.52
Step by Step Solution
- Step 1: Write the proportion equation
420,225.05 : 579,909.38 = 229,237.08 : x - Step 2: Convert to fraction form
420,225.05/579,909.38 = 229,237.08/x - Step 3: Cross multiply
420,225.05x = 579,909.38 × 229,237.08 - Step 4: Simplify right side
420,225.05x = 132,936,731,789.63 - Step 5: Solve for x
x = 132,936,731,789.63/420,225.05 - Step 6: Final answer
x = 316,346.52
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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.