Finding the Fourth Proportional to 420,206.32, 579,888.88 and 229,223.68
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Solution
The fourth proportional to 420,206.32, 579,888.88 and 229,223.68 is: 316,330.95
Step by Step Solution
- Step 1: Write the proportion equation
420,206.32 : 579,888.88 = 229,223.68 : x - Step 2: Convert to fraction form
420,206.32/579,888.88 = 229,223.68/x - Step 3: Cross multiply
420,206.32x = 579,888.88 × 229,223.68 - Step 4: Simplify right side
420,206.32x = 132,924,263,064.68 - Step 5: Solve for x
x = 132,924,263,064.68/420,206.32 - Step 6: Final answer
x = 316,330.95
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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.