Finding the Fourth Proportional to 420,196.84, 579,875.34 and 229,211.08
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Solution
The fourth proportional to 420,196.84, 579,875.34 and 229,211.08 is: 316,313.31
Step by Step Solution
- Step 1: Write the proportion equation
420,196.84 : 579,875.34 = 229,211.08 : x - Step 2: Convert to fraction form
420,196.84/579,875.34 = 229,211.08/x - Step 3: Cross multiply
420,196.84x = 579,875.34 × 229,211.08 - Step 4: Simplify right side
420,196.84x = 132,913,852,946.77 - Step 5: Solve for x
x = 132,913,852,946.77/420,196.84 - Step 6: Final answer
x = 316,313.31
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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.